Researcher Database
SHIMIZU Hiromasa
| ■Faculty | Institute of Engineering Division of Advanced Electrical and Electronics Engineering | |||
| ■Position | Professor | |||
Last Updated :2024/09/13
Activity information
Name and contact details
Name
シミズ ヒロマサ, 清水 大雅, SHIMIZU HiromasaYear of birth
1974E-mail
h-shmz
cc.tuat.ac.jp
Affiliation / Position
Institute of Engineering Division of Advanced Electrical and Electronics Engineering, Professor
Other affiliation
- Associate Professor
Faculty of Engineering Department of Electrical and Electronic Engineering - Associate Professor
Graduate School of Engineering Department of Electrical and Electronic Engineering - Associate Professor
Graduate School of Engineering Department of Electronic and Information Engineering
Research History
日本学術振興会 特別研究員
From Jan. 2000, To Mar. 2002
Research Associate, Department of Electronic Enigeering, The University of Tokyo
From Apr. 2002, To Jul. 2002
Research Associate, Research Center for Advanced Science and Technology, The University of Tokyo
From Aug. 2002, To Dec. 2006
東京農工大学 大学院共生科学技術研究院 若手人材育成拠点 特任助教授
From Jan. 2007, To Mar. 2007
東京農工大学 大学院共生科学技術研究院 若手人材育成拠点 特任准教授
From Apr. 2007, To Mar. 2011
東京農工大学 大学院工学研究院 准教授
From Apr. 2011
Education
- The University of Tokyo
Faculty of Engineering
Department of Electronic Engineering
To Mar. 1997, graduated - The University of Tokyo
Graduate School, Faculty of Engineering
Department of Electronic Engineering
To Mar. 1999, completed, master course - The University of Tokyo
Graduate School, Faculty of Engineering
Department of Electronic Engineering
To Mar. 2002, completed, doctor course
Current state of research and teaching activities
Research Areas
- Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering), Electron device and electronic equipment
- Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering), Electric and electronic materials
- Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering), Communication and network engineering
Research Interests
- Spintronics, Semiconductor optoelectronic devices and integration, Magneto-optics, Lightwave analysis, Chatacterization and Analysis of Environment
Subject of research
- Magnetic modulation of surface plasmon resonance and its application to highly sensitive sensors
From 201604 - 半導体光非相反素子の研究
From 200204 - Chacterization and Analysis of Environment
From 201004
Proposed theme of joint or funded research
- 半導体磁性体複合構造を用いた光制御素子、光非相反素子の開発
半導体磁性体複合構造を用いた光制御素子、光非相反素子の設計・作製・評価を行う。
wish to undertake joint research with industry and other organizations including private sector. - 半導体レーザを用いた遠隔環境計測
農地、工業地帯等の遠隔地における温室効果ガスの濃度の遠隔測定を行う。
wish to undertake joint research with industry and other organizations including private sector.
Teaching Experience
Grants-in-Aid for Scientific Research
- 挑戦的研究（萌芽）
中空構造を含む磁気プラズモンセンサの開発と高感度化への挑戦
From 2018, To 2019 - 基盤研究(B)
強磁性金属表面プラズモンを利用する革新的光アイソレータの開発
From 2016, To 2018 - 挑戦的萌芽研究
磁性ガーネットの酸素欠損濃度と磁気異方性の電気的制御の研究
From 2015, To 2017 - 若手研究(A)
一方向発振リングレーザを用いた大規模スピン光メモリ
From 2012, To 2014 - 挑戦的萌芽研究
強磁性金属ナノ粒子における光局在効果と低エネルギー磁化反転方式の研究
From 2012, To 2014 - 特定領域研究
スピン流と機能制御 調整班
From 2010, To 2010 - 若手研究(A)
強磁性金属の磁化による半導体レーザの発振状態制御と光情報信号処理への応用
From 2009, To 2011 - 特定領域研究
スピン流と機能制御 調整班
From 2009, To 2009 - 新学術領域研究(研究領域提案型)
医用画像に基づく計算解剖学の創成と診断・治療支援の高度化
From 2009, To 2009 - 特定領域研究
スピン流と機能制御 調整班
From 2009, To 2009 - 特定領域研究
スピン流と機能制御 調整班
From 2008, To 2008 - 特定領域研究(計画班)
光スピントロニクス機能デバイスの研究
From 2007, To 2010 - 若手研究(A)
導波路光アイソレータモノリシック集積半導体レーザの研究
From 2006, To 2008 - 若手研究(A)
導波路光アイソレータモノリシック集積半導体レーザの研究
From 2006, To 2008 - 若手研究(B)
電界吸収型光変調器に基づく全光スイッチ及び波長変換デバイスの研究
From 2004, To 2005 - 特定領域研究(公募)
半導体・磁性体複合構造を用いた非相反磁気光学デバイス及び集積化の研究
From 2003, To 2005 - その他
III-V族磁性半導体混晶及び量子へテロ構造の研究
From 2001, To 2002 - 挑戦的研究（萌芽）
複素SPRセンサとDNAアプタマーによる揮発性有機化合物の特異的高感度検出
From 2020, To 2022
Papers
- Improvement of photothermal heating efficiency of Si plasmonic waveguide heaters with ring resonators
Hiromasa Shimizu, Kota Shinohara, and Masahiko Hasumi
Japanese Journal of Applied Physics
IOP Publishing
28 May 2024, Research paper (scientific journal), joint, 63, 5, DOI(公開)(r-map), 052004-1, 052004-7 - Quantification of 288 K local photothermal heating and miniaturization in Si plasmonic waveguides integrated with resonators
Nana Ota, Kota Shinohara, Masahiko Hasumi and Hiromasa Shimizu
Japanese Journal of Applied Physics
IOP Publishing
We report the design and fabrication of Si plasmonic waveguide local heaters with ring resonators. Quantification of the local temperature rise is reported through analysis based on the thermo-optic effect, and the heaters can be miniaturized by introducing a stronger interaction between the propagating light and matter. The resonance wavelength in the waveguide heater was shifted toward a longer wavelength by injecting TM mode light, and the shift was proportional to the light intensity. The local temperature rise was 288 K upon inputting 6.3 mW light, and the photothermal conversion efficiency was as high as 46.1 K mW(-1) in a Si plasmonic waveguide loaded with 30 nm thick and 1 mu m long Co thin films, showing improved characteristics compared with previous devices. Investigation toward achieving a higher efficiency is discussed based on simulation and experimental results, for realizing photothermal waveguide heaters with smaller sizes and lower input power for various applications.
01 Apr. 2023, Research paper (scientific journal), joint, 62, 4, DOI(公開)(r-map), 042002-1, 042002-8 - Improved Etched Surface Morphology in Electron Cyclotron Resonance-Reactive Ion Etching of GaN by Cyclic Injection of CH4/H2/Ar and O2 with Constant Ar Flow
Taro Arakawa, Yoshiki Awa, Tomoyoshi Ide, Nobuo Haneji, Kunio Tada, Masakazu Sugiyama, Hiromasa Shimizu, Yukihiro Shimogaki and Yoshiaki Nakano
Japanese Journal of Applied Physics
15 Jul. 2005, Research paper (scientific journal), joint, 44, 7S, DOI(公開)(r-map), 5819, 5823 - Magneto-Optics Effects: New Trends and Future Prospects for Technological Developments
Conrad Rizal, Hiromasa Shimizu, and Jorge Ricardo Mej?a-Salazar
Magnetochemistry
MDPI
Magneto-optics (MO) is an effervescent research field, with a wide range of potential industrial applications including sensing, theranostics, pharmaceutics, magnetometry, and spectroscopy, among others. This review discusses the historical development, from the discovery of MO effects up to the most recent application trends. In addition to the consolidated fields of magnetoplasmonic sensing and modulation of optical signals, we describe novel MO materials, phenomena, and applications. We also identified the emerging field of all-dielectric magnetophotonics, which hold promise to overcome dissipation from metallic inclusions in plasmonic nanostructures. Moreover, we identified some challenges, such as the need to merge magneto-chiroptical effects with microfluidics technology, for chiral sensing and enantioseparation of drugs in the pharmaceutical industry. Other potential industrial applications are discussed in light of recent research achievements in the available literature.
Sep. 2022, Research paper (scientific journal), joint, 8, DOI(公開)(r-map), 94-1, 94-17 - 221 K Local Photothermal Heating in a Si Plasmonic Waveguide Loaded with a Co Thin Film
Ota, Nana; Miyauchi, Tomohiro; Shimizu, Hiromasa
SENSORS
MDPI
Photothermal heaters are important devices for optical switches and memories based on the thermo-optic/magneto-optic effect and phase change materials. We demonstrated photothermal heating in Si plasmonic waveguides loaded with Co thin films by measuring the resistance change upon inputting transverse-magnetic (TM) mode light. Temperature rise is proportional to the light intensity with clear polarization dependence. The photothermal conversion efficiency was estimated at 36 K/mW and maximum temperature rise was estimated at 221 K at steady state upon the inputting 6.3 mW TM mode light for the 400 nm-wide, 8 mu m-long and 189 nm-thick Co film deposited on the Si wire waveguide with 129 nm-thick SiO2 buffer layer. The method to increase the efficiency is discussed based on the experimental and simulation results considering the thickness of the SiO2 buffer layer, Co layer and Si core layer, waveguide width, and wavelength. Local photothermal heaters in this study can be applied to a variety of fields including optical switches/memories without electrical control signals in photonic integrated circuits, on-chip optical sensors, and a lab-on-a-chip in biology, chemistry, and medicine.
06 Oct. 2021, Research paper (scientific journal), joint, 21, 19, DOI(公開)(r-map), 1729060, 1729364 - Modulation of surface plasmon resonance by magnetization reversal in Au/Fe/Au trilayer and wedge structure for achieving higher refractive index sensitivity
Suzuki, Shogo; Maeda, Takumi; Ogura, Takahiro; Suzuki, Shoma; Kaihara, Terunori; Shimizu, Hiromasa
JAPANESE JOURNAL OF APPLIED PHYSICS
IOP PUBLISHING LTD
We report enhancement of the transverse magneto-optic Kerr effect (TMOKE) in Au/Fe/Au trilayers for improving the refractive index (RI) sensitivity in surface plasmon resonance sensors by magnetic modulation. The thicknesses of the upper Au layer, the Fe layer and the lower Au layer with required thickness resolution were theoretically optimized to maximize the TMOKE intensity with perfect momentum matching, and 3% TMOKE intensity was obtained in a trilayer. Furthermore, a wedge-shaped Au thin film was fabricated on a glass substrate, and the incident angle showing minimum reflectivity was modulated, corresponding to a difference in momentum matching. Resolution of the metal layer thickness (0.26 nm) was demonstrated in a single sensor chip for maximizing the TMOKE intensity. Enhanced RI resolution is expected in sensor chips formed of a Au/Fe/wedge Au trilayer, which will contribute to improvements in the limit of detection when measuring the analytes by analyzing the resulting signals.
01 May 2021, Research paper (scientific journal), joint, 60, 12, 0021-4922, DOI(公開)(r-map), SBBI06-1, SBBI06-7 - A Wedge-Shaped Au Thin Film: Integrating Multiple Surface Plasmon Resonance Sensors in a Single Chip and Enhancing the Figure of Merit
Hiromasa Shimizu, Takahiro Ogura, Takumi Maeda, and Shogo Suzuki
Frontiers in Nanotechnology
15 Oct. 2021, Research paper (scientific journal), joint, 3, DOI(公開)(r-map), 724528-1, 724528-7 - Preparation of Magnetic Garnet Thin Films on Nonmagnetic Substrate Towards Integrable Optical Isolators
Hiromasa SHIMIZU
JAPANESE JOURNAL OF OPTICS
Optical Society of Japan
10 Oct. 2021, Research paper (scientific journal), only, 50, 10, 0389-6625, 412, 418 - Fe thicknesses dependence of attenuated total reflection response in magnetoplasmonic double dielectric structures: angular versus wavelength interrogation
Kaihara, Terunori; Shimodaira, Takahiro; Suzuki, Shogo; Cebollada, Alfonso; Armelles, Gaspar; Shimizu, Hiromasa
JAPANESE JOURNAL OF APPLIED PHYSICS
IOP PUBLISHING LTD
Al2O3/SiO2/Fe/Au structures with different Fe thicknesses were fabricated using different deposition techniques. Due to the cutoff condition of surface plasmon polaritons in the double-layer dielectric structure and magneto-optical effect, the reflectivity spectra show a minimum and its angular and wavelength positions can be modulated by the magnetic field. For thin Fe layers, the magnetic field modulates mainly the angular position, whereas for thick Fe layers both wavelength and angular positions are modulated. The proposed structure and the angular and wavelength dependence suggest two feasibilities of (1) two selectable interrogation modes: whereas for structures with thin Fe layers angular interrogation mode is preferred, with thick Fe layers wavelength interrogation mode is more appropriate, and (2) discrimination of analyte in the complex space: the refractive shift in the real part would dominantly appear in the angular interrogation, while the imaginary part in the wavelength interrogation.
01 Dec. 2019, Research paper (scientific journal), joint, 58, 12, 0021-4922, DOI(公開)(r-map), 122003-1, 122003-7 - Surface plasmon resonance transducers with membrane structure toward gas-sensing applications
Takahiro Shimodaira, Shogo Suzuki, Yoshiki Aizawa, Yasufumi Iimura, Hiromasa Shimizu
Proc. SPIE 10926, Quantum Sensing and Nano Electronics and Photonics XVI, 1092628
SPIE
01 Feb. 2019, Research paper (international conference proceedings), joint, 10926, DOI(公開)(r-map), 1092628-1, 1092628-6 - Plasmonic isolator for photonic integrated circuits
Shimizu, Hiromasa; Zayets, Vadym
MRS BULLETIN
CAMBRIDGE UNIV PRESS
This article discusses recent studies of on-chip integration of a plasmonic isolator on a Si substrate and a hybrid isolator on an InP substrate. The key characteristics of the plasmonic isolator are reviewed and future prospects are discussed. A method to enhance the magneto-optical figure of merit (FOM) and reduce the propagation loss of a surface plasmon in order to realize the proposed design of the plasmonic isolator is described. One hundred percent enhancement of the FOM and 20x reduction of propagation loss in the optimized ferromagnetic plasmonic structure are experimentally demonstrated.
Jun. 2018, Research paper (scientific journal), joint, 43, 6, 0883-7694, DOI(公開)(r-map), 425, 429 - Optimization of figure of merit in magnetoplasmonic waveguides with Fe/Au multilayer for optical isolator based on nonreciprocal coupling on Si waveguides
Shimizu, Hiromasa; Shimodaira, Takahiro
JAPANESE JOURNAL OF APPLIED PHYSICS
IOP PUBLISHING LTD
We report on magnetoplasmonic Si waveguides with a ferromagnetic Fe/conductive metal Au multilayer for realizing a sizable magnetooptic effect with a low propagation loss for integrated optical isolators. By combining the ferromagnetic metal Fe with a highly conductive Au layer, the largest nonreciprocal differences in effective index were estimated for propagation lengths of 1-20 mu m. Mode analysis with and without a Au layer clarified that the insertion of a Au layer on an Fe layer improves the optical confinement in the Fe layer with reduced propagation loss and is effective in enlarging the magnetooptic effect for the same propagation length. On the basis of the optimized Fe/Au multilayer structure, we designed waveguide optical isolators based on nonreciprocal coupling by the finite difference time domain (FDTD) method. We estimated an optical isolation of 10.8 dB with a forward insertion loss of 13.4 dB in a 34-mu m-long nonreciprocal directional coupler. (C) 2018 The Japan Society of Applied Physics.
Apr. 2018, Research paper (international conference proceedings), joint, 57, 4, 0021-4922, DOI(公開)(r-map) - Research on Novel Magnetization Reversal Method of Magnetic Garnet Thin Film and Application to Spatial Light Modulators
Hiromasa SHIMIZU
技術情報誌TELECOM FRONTIER
Nov. 2017, only, 97 - Nonreciprocal dielectric-loaded plasmonic waveguides using magneto-optical effect of Fe
Kaihara, Terunori; Shimizu, Hiromasa
OPTICS EXPRESS
OPTICAL SOC AMER
We have implemented the nonreciprocal propagation capabilities into plasmonic waveguides and have simulated the performances. We employed dielectric-loaded surface plasmon polariton waveguide (DLSPPW) and long-range DLSPPW (LR-DLSPPW) configurations, where ferromagnetic-metal Fe is used instead of noble metals in order to obtain nonreciprocal propagations by the transverse magneto-optical (MO) effect. The nonreciprocal performances were characterized by the finite-difference frequency-domain (FDFD) method in terms of the propagation losses in return for the nonreciprocal phase shift (NRPS) and nonreciprocal propagation loss (NRL). The NRPS and NRL of the DLSPPW configuration are larger than those of the previously reported semiconductor waveguide optical isolators owing to the large MO constant of Fe and the field confinement by surface plasmons although the propagation loss for NRL of 1 dB is at least 31 dB and the propagation length is limited to less than 10 mu m. To reduce such a large propagation loss, we introduced the LR-DLSPPW configuration composed of Polymethyl methacrylate (PMMA) ridge and Benzocyclobutene (BCB) buffer layer. The Fe layer thickness and width are optimized to 50 nm and 500 nm, respectively, so that sizable MO effect and low propagation loss coexist. The propagation loss for NRL of 1 dB is suppressed to similar to 10 dB within a waveguide length of similar to 56 mu m. Our comprehensive investigation offers fundamental information on practical magneto-plasmonic waveguides and how much nonreciprocal performances are expected, providing an insight into the integration of magneto-plasmonics with on-chip photonics and electronics. (C) 2017 Optical Society of America
Jan. 2017, Research paper (scientific journal), joint, 25, 2, 1094-4087, DOI(公開)(r-map), 730, 748 - Magnetic field control and wavelength tunability of SPP excitations using Al2O3/SiO2/Fe structures
Terunori Kaihara, Hiromasa Shimizu, Alfonso Cebollada, and Gaspar Armelles
Applied Physics Letters
Sep. 2016, Research paper (scientific journal), joint, 109, 11, DOI(公開)(r-map), 111102 - Enhancement of magneto-optical Kerr effect by surface plasmons in trilayer structure consisting of double-layer dielectrics and ferromagnetic metal
Terunori Kaihara, Takeaki Ando, Hiromasa Shimizu, Vadym Zayets, Hidekazu Saito, Koji Ando, and Shinji Yuasa
Optics Express
Apr. 2015, Research paper (scientific journal), joint, 23, 9, DOI(公開)(r-map), 11537, 11555 - Excitation of surface plasmon at the interface between ferromagnetic metal / dielectric film by Otto configuration
Saori UMETSU, Terunori KAIHARA, Takeaki ANDO, Yoshiki YAGO, and Hiromasa SHIMIZU
IEICE Technical Report
Oct. 2014, Research paper (scientific journal), joint, 114, 281, 189, 194 - Measurement of carbon dioxide concentration by fiber-loop ring-down spectroscopy for continuous remote measurement
Hiromasa Shimizu and Hiroshi Noriyasu
Japanese Journal of Applied Physics
Oct. 2014, Research paper (scientific journal), joint, 53, 11, DOI(公開)(r-map), 116601 - TE-mode nonreciprocal propagation in passive Fe50Co50–InGaAsP / InP semiconductor optical isolators
Hiromasa Shimizu, Shohei Sakanishi, Takahiro Bando, and Yuhi Yagi
Japanese Journal of Applied Physics
Jul. 2014, Research paper (scientific journal), joint, 53, 7, DOI(公開)(r-map), 072701, 1 - 072701-5 - Characterizations of TE mode semiconductor optical isolators for unidirectional semiconductor ring lasers
Shohei SAKANISHI, Takahiro BANDO, and Hiromasa SHIMIZU
IEICE Technical Report
Oct. 2013, Research paper (scientific journal), joint, 113, 262, 81, 84 - Magneto-Optical Properties and Size Effect of Ferromagnetic Metal Nanoparticles
Terunori Kaihara, Masaki Mizuguchi, Koki Takanashi, Hiromasa Shimizu
Japanese Journal of Applied Physics
Jun. 2013, Research paper (scientific journal), joint, 52, 7, DOI(公開)(r-map), 073003, 1 - 073003-6 - Characterization of Transverse Magneto-optic Kerr Effect in Ferromagnetic Metals for Semiconductor Optical Isolators
Hiromasa Shimizu, Saori Umetsu, and Terunori Kaihara
Japanese Journal of Applied Physics
Jan. 2013, Research paper (scientific journal), joint, 52, 2, DOI(公開)(r-map), 028006 - Unidirectional Semiconductor Ring Lasers using Semiconductor Optical Isolators
Satoshi USUBA, Shohei SAKANISHI, Takahiro BANDO, Daisuke OKAZAKI, Hiromasa SHIMIZU
IEICE Technical Report
Oct. 2012, Research paper (scientific journal), joint, 112, 258, 77, 80 - Control of Lasing States in Magnetic Bistable Laser Diode
Komei TAZAWA, Keishi UEHARA, Daisuke ISHIZAKA, and Hiromasa SHIMIZU
IEICE Technical Report
Oct. 2012, Research paper (scientific journal), joint, 112, 258, 81, 85 - Reduced Threshold Current and Enhanced Extinction Ratio in a Magnetically Controllable Fe50Co50–InGaAlAs/InP Nonreciprocal Semiconductor Laser
Hiromasa Shimizu, Keishi Uehara, Komei Tazawa, and Shohei Sakanishi
Japanese Journal of Applied Physics
Feb. 2012, Research paper (scientific journal), joint, 51, 2, DOI(公開)(r-map), 02BG02 - Demonstration of a Magnetically Controllable Fabry-Perot Laser and an Unidirectional Ring Laser Utilizing a Nonreciprocal Semiconductor Optical Amplifier
Hiromasa Shimizu, Yoshitaka Kono, Syunsuke Goto, and Toshiaki Mori
Applied Physics Express
Feb. 2011, Research paper (scientific journal), joint, 4, 2, DOI(公開)(r-map), 022201 - Fabrication and Characterization of Evanescent Semiconductor Optical Isolators with Small Gain Saturation Effect
H. Shimizu and S. Goto
Jpn. J. Appl. Phys.
Dec. 2010, Research paper (scientific journal), joint, 49, 12, DOI(公開)(r-map), 122201 - 応用物理学分野のアカデミック・ロードマップ 磁性・スピントロニクス
岡林潤、近藤剛、千葉大地、野崎隆行、清水大雅、川畑史郎、秋永広幸
応用物理
Aug. 2010, joint, 79, 8, 720, 722 - Optical Isolation Using Nonreciprocal Polarization Rotation in Fe-InGaAlAs/InP Semiconductor Active Waveguide Optical Isolators
H. Shimizu, S. Goto, and T. Mori
Applied Physics Express
Jul. 2010, Research paper (scientific journal), joint, 3, 7, DOI(公開)(r-map), 072201 - Evanescent Semiconductor Active Optical Isolators for Low Insertion Loss and High Gain Saturation Power
H. Shimizu and S. Goto
Journal of Lightwave Technology
May 2010, Research paper (scientific journal), joint, 28, 9, DOI(公開)(r-map), 1414, 1419 - InGaAsP/InP evanescent mode waveguide optical isolators and their application to InGaAsP/InP/Si hybrid evanescent optical isolators
H. Shimizu and S. Goto
Optical and Quantum Electronics
Apr. 2010, Research paper (scientific journal), joint, 41, 9, DOI(公開)(r-map), 653, 660 - Design and fabrication of Unidirectional Ring Lasers using Semiconductor Optical Isolators
Yoshitaka KONO, Toshiaki MORI, Hiromasa SHIMIZU
IEICE Technical Report
Jan. 2010, Research paper (scientific journal), joint, 109, 401, 119, 122 - Semiconductor Waveguide Optical Isolators towards Larger Optical Isolation utilizing Nonreciprocal Phase Shift by Ferromagnetic Co
H. Shimizu, S. Yoshida, and S. Goto
IEEE Photonics Technology Letters
Sep. 2008, Research paper (scientific journal), joint, 20, 18, DOI(公開)(r-map), 1554, 1556 - Semiconductor Waveguide Optical Isolator Incorporating Ferromagnetic Epitaxial MnSb for High Temperature Operation
Tomohiro Amemiya, Yusuke Ogawa, Hiromasa Shimizu, Hiro Munekata, and Yoshiaki Nakano
Applied Physics Express
Jan. 2008, Research paper (scientific journal), joint, 1, 2, DOI(公開)(r-map), 022002 - Monolithic Integration of a Waveguide Optical Isolator With a Distributed Feedback Laser Diode in the 1.5-um Wavelength Range
H. Shimizu and Y. Nakano
IEEE PHOTONICS TECHNOLOGY LETTERS
Dec. 2007, Research paper (scientific journal), joint, 19, 24, 1973, 1975 - InGaAlAs Multiple-Quantum-Well Optical Phase Modulators Based on Carrier Depletion
H. Ohe, H. Shimizu, and Y. Nakano
IEEE PHOTONICS TECHNOLOGY LETTERS
Nov. 2007, Research paper (scientific journal), joint, 19, 22, DOI(公開)(r-map), 1816, 1818 - 1.54-um TM-mode waveguide optical isolator based on the nonreciprocal loss phenomenon: device design to reduce insertion loss
T. Amemiya, H. Shimizu, M. Yokoyama, P. N. Hai, M. Tanaka, and Y. Nakano
Applied Optics
Aug. 2007, Research paper (scientific journal), joint, 46, 23, 5784, 5791 - Nonreciprocal propagation of light without external magnetic fields in a semiconductor waveguide isolator with a MnAs layer
T. Amemiya, H. Shimizu, P. N. Hai, M. Tanaka, and Y. Nakano
Journal of Magnetism and Magnetic Materials
Mar. 2007, Research paper (scientific journal), joint, 310, 2161, 2163 - Waveguide-Based 1.5um Optical Isolator Based on Magneto-Optic Effect in Ferromagnetic MnAs
T. Amemiya, H. Shimizu, P. N. Hai, M. Yokoyama, M. Tanaka, and Y. Nakano
Japanese Journal of Applied Physics
Jan. 2007, Research paper (scientific journal), joint, 46, 1, 205, 210 - Semiconductor waveguide optical isolator based on the nonreciprocal loss induced by ferromagnetic MnAs
T. Amemiya, H. Shimizu, Y. Nakano, P. N. Hai, M. Yokoyama, and M. Tanaka
Applied Physics Letters
Jul. 2006, Research paper (scientific journal), only, 89, 021104 - Monolithically Integrable Semiconductor Active Waveguide Optical Isolators
H. Shimizu, T. Amemiya, M. Tanaka, and Y. Nakano
Journal of the Magnetics Society of Japan
Jun. 2006, Research paper (scientific journal), joint, 30, 6-2, 624, 629 - Fabrication and Characterization of InGaAsP/InP Active Waveguide Optical Isolator With 14.7dB/mm TE Mode Nonreciprocal Attenuation
H. Shimizu and Y. Nakano
IEEE. J. Lightwave Tech.
Jan. 2006, Research paper (scientific journal), joint, 24, 1, 38, 43 - First Demonstration of TE Mode Nonreciprocal Propagation in an InGaAsP/InP Active Waveguide for an Integratable Optical Isolator
H. Shimizu and Y. Nakano
Jpn. J. Appl. Phys.
Dec. 2004, Research paper (scientific journal), joint, 43, 12A, L1561, L1563 - Electronic and magnetic properties of MnAs nanoclusters studied by x-ray absorption spectroscopy and x-ray manetic circular dichroism
J. Okabayashi, M. Mizuguchi, M. Oshima, H. Shimizu , M. Tanaka, M. Yuri and C. T. Chen
Appl. Phys. Lett.
Dec. 2003, Research paper (scientific journal), joint, 83, 26, 5485, 5487 - Magnetooptical Kerr Effect of Semiconductor-Based Multilayer Structures Containing a GaAs:MnAs Granular Thin Film
K. Ueda, H. Shimizu, and M. Tanaka
Jpn. J. Appl. Phys.
Aug. 2003, Research paper (scientific journal), joint, 42, 8A, L914, 917 - GaAs/AlAs DBRとMnAsナノクラスターを含む半導体積層構造の設計及び磁気光学物性
上田和彦、清水大雅、田中雅明
日本応用磁気学会誌
Apr. 2003, Research paper (scientific journal), joint, 27, 273, 276 - Compensation Mechanisms in Low-temperature Grown GaMnAs Investigated by Scanning Tunneling Microscopy
G. Mahieu, P. Condette, B. Grandidier, J.P. Nys, G. Allan, D. Stievenard, Ph. Evert, H. Shimizu and M. Tanaka
APPLIED PHYSICS LETTERS
American Institute of Physics
28 Jan. 2003, Research paper (scientific journal), joint, 82, 5, DOI(公開)(r-map), 712, 714 - Design of semiconductor-waveguide-type optical isolators using the non-reciprocal loss/gain in the magneto-optical waveguides having MnAs nanoclusters
H. Shimizu and M. Tanaka
Appl. Phys. Lett.
Dec. 2002, Research paper (scientific journal), joint, 81, 5246, 5248 - Blue shift of magneto-optical spectra and ferromagnetic ordering in (GaMn)As / AlAs ultrathin (<5nm) heterostructures
H. Shimizu and M. Tanaka
J. Appl. Phys.
May 2002, Research paper (scientific journal), joint, 91, 10, 7487, 7489 - Magneto-optical properties of a Si-doped GaAs:MnAs based magneto-photonic crystal operating at 1.55um
H. Shimizu and M. Tanaka
Physica E
Mar. 2002, Research paper (scientific journal), joint, 13, 597, 601 - Growth and Properties of quaternary alloy magnetic semiconductor InGaMnAs
S. Ohya, Y. Higo, H. Shimizu, J. M. Sun and M. Tanaka
Jpn. J. Appl. Phys.
Jan. 2002, Research paper (scientific journal), joint, 41, L24, L27 - Enhancement of magneto-optical effect in a GaAs:MnAs hybrid structure sandwiched by GaAs/AlAs distributed Bragg reflector
M. Tanaka, M. Miyamura, and H. Shimizu
J. Cryst. Growth
Jul. 2001, Research paper (scientific journal), joint, 227-228, 839, 846 - MBE growth process of ferromagentic MnAs on Si (111) substrates
A. M. Nazmul, A. G. Banshchikov, H. Shimizu and M. Tanaka
J. Cryst. Growth
Jul. 2001, Research paper (scientific journal), joint, 227-228, 874, 881 - Magneto-optical properties of semiconductor-based superlattices having GaAs with MnAs nanoclusters
H. Shimizu and M. Tanaka
J. Appl. Phys.
Jun. 2001, Research paper (scientific journal), joint, 89, 7281, 7283 - Anisotropic tunneling magnetoresistance in GaMnAs / AlAs / GaMnAs ferromagnetic semiconductor tunnel junction
Y. Higo, H. Shimizu, and M. Tanaka
J. Appl. Phys.
Jun. 2001, Research paper (scientific journal), joint, 89, 6745, 6747 - Large tunneling magnetoresistance (>70%) in GaMnAs / AlAs / GaMnAs single-barrier ferromagnetic semiconductor tunnel junctions
Y. Higo, H. Shimizu, and M. Tanaka
Physica E
May 2001, Research paper (scientific journal), joint, 10, 292, 294 - MnAsナノクラスターとGaAs / AlAs半導体DBRからなる多層膜における磁気光学効果の増大
清水大雅、宮村信、田中雅明
日本応用磁気学会誌
Apr. 2001, Research paper (scientific journal), only, 25, 655, 658 - Magneto-optical properties of a GaAs:MnAs hybrid structure sandwiched by GaAs/AlAs distributed Bragg reflectors: Enhanced magneto-optical effect and theoretical analysis
H. Shimizu, M. Miyamura, and M. Tanaka
Appl. Phys. Lett.
Mar. 2001, Research paper (scientific journal), joint, 78, 1523, 1525 - Ferromagnetic Semiconductor Heterostructures Based on (GaMn)As
M. Tanaka, H. Shimizu, T. Hayashi, H. Shimada, and K. Ando
J. Vac. Sci. Tech. A
Jul. 2000, Research paper (scientific journal), joint, 18, 1247, 1253 - Enhanced Magneto-Optical Effect in a GaAs/MnAs Nanoscale Hybrid Structure Sandwiched by GaAs/AlAs Distributed Bragg Reflectors
H. Shimizu, M. Miyamura, and M. Tanaka
J. Vac. Sci. Tech. B
Jul. 2000, Research paper (scientific journal), joint, 18, 2063, 2065 - Magneto-optical spectra of epitaxial ferromagnetic MnAs films grown on Si and GaAs substrates
A. M. Nazmul, H. Shimizu and M. Tanaka
J. Appl. Phys.
May 2000, Research paper (scientific journal), joint, 87, 6791, 6793 - Tunneling Spectroscopy and Magnetoresistance in (GaMn)As / AlAs / (GaMn)As Ultrathin Magnetic Semiconductor Heterostructures
T. Hayashi, H. Shimada, H. Shimizu, and M. Tanaka
J. Cryst. Growth
May 1999, Research paper (scientific journal), joint, 201-202, 689, 692 - Magnetic and transport properties of III-V based magnetic semiconductor (GaMn)As: Growth condition dependence
H. Shimizu, T. Hayashi, T. Nishinaga, M. Tanaka
Appl. Phys. Lett.
Jan. 1999, Research paper (scientific journal), joint, 74, 398, 400
Books and Other Publications
- Physical Sensors: Optical Sensors
Hiromasa Shimizu
Elsevier
2022, 978-0-12-822549-3 - "Detection of Volatile Organic Compound by the Surface Plasmon Resonance Sensors with Wedge-Shaped Au Thin Film", AGRICULTURAL BIOTECHNOLOGY, Vol. 6, 2022
Hiromasa SHIMIZU
HOKURYUKAN
20 Jun. 2022, 2432-5511 - Advances in Optical and Photonic Devices
Hiromasa SHIMIZU
INTECH
Jan. 2010, 978-953-7619-76-3 - スピントロニクスの基礎と材料・応用技術の最前線 第33章 光スピントロニクスデバイス ～集積光非相反デバイス～
高梨弘毅監修、42人による共著
シーエムシー出版
Jul. 2009, 978-4-7813-0105-1 - Fabrication a TE Mode InGaAsP Active Waveguide Optical Isolator Based on the Nonreciprocal Loss Shift (by H. Shimizu and Y. Nakano)
H. Shimizu and Y. Nakano
Feb. 2005
Presentations
- Simultaneous characterization of the resonance wavelength of the Si ring resonator sensor array by using an infrared camera
IEICE Society Conference
10 Sep. 2024, Oral presentation(general) - Highly sensitive detection of biogenic volatile organic compounds by SPR sensor with Al thin film decorated with graphene oxide and violet light source
ACS Fall 2024
19 Aug. 2024, Oral presentation(general) - PEIと表面プラズモン共鳴センサによる二酸化炭素の増感特性
電子情報通信学会 光集積及びシリコンフォトニクス(PICS)特別研究専門委員会 第3期第2回PICS研究会
12 Jul. 2024, Poster presentation - Si plasmonic waveguide heaters
International Conference on Advanced Plasmonics, Magnetics, & Magneto-Optical Technologies (ICAPMOT 2024)
20 May 2025, Oral presentation(invited, special) - Selective Detection of Methyl salicylate Gas by SPR sensors with Al Decorated with Graphene Oxide
The 84th. Japan Society of Applied Physics, Autumn Meeting
23 Sep. 2023, Oral presentation(general) - Selective Detection of Methyl salicylate Gas by SPR sensors with Au Decorated with Graphene Oxide
The 84th. Japan Society of Applied Physics, Autumn Meeting
23 Sep. 2023, Oral presentation(general) - Detection of the Magnetization Reversal in Co loaded Si Wire Waveguides by Transverse Magneto-Optic Kerr effect
The 84th. Japan Society of Applied Physics, Autumn Meeting
20 Sep. 2023, Oral presentation(general) - Improvement of the Heating Efficiency of Si Waveguide Heaters
The 84th. Japan Society of Applied Physics, Autumn Meeting
20 Sep. 2023, Oral presentation(general) - Signal Enhancement at Detection of Acetic Acid by Olfactory Receptor Olfr78 and Si Ring Resonators
IEICE Society Conference
15 Sep. 2023, Oral presentation(general) - Enhanced ethanol gas detection signal by the surface plasmon resonance sensor with the ss-DNA decorated wedge-shaped Au thin film
BIOSENSORS 2023
07 Jun. 2023, Poster presentation - Improved Ethanol Detection by a Surface Plasmon Sensor with Al sensor chip and violet light
International Conference on Advanced Plasmonics, Magnetics, & Magneto-Optical Technologies (ICAPMOT 2023)
24 May 2023, Oral presentation(general) - Wedge-shaped surface plasmon resonance sensor
International Conference on Advanced Plasmonics, Magnetics, & Magneto-Optical Technologies (ICAPMOT 2023)
23 May 2023, Oral presentation(invited, special) - Magnetically Switchable Semiconductor Microring Laser with TE-mode Waveguide Optical Isolator
28th INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE
18 Oct. 2022, Poster presentation - Relationship between Irradiation Time and Temperature Rise in the Si Waveguide Heater
The 83th. Japan Society of Applied Physics, Autumn Meeting
21 Sep. 2022, Oral presentation(general) - Detection of Methyl salicylate by Wedge Shaped SPR Sensors Decorated with PEI
The 83th. Japan Society of Applied Physics, Autumn Meeting
23 Sep. 2022, Oral presentation(general) - Maximization of the signals in SPR sensor and test detection of eth anol gas
The 83th. Japan Society of Applied Physics, Autumn Meeting
23 Sep. 2022, Oral presentation(general) - Investigation of the Structural Parameters for Optimizing the Magnetic Modulation in Surface Plasmon Resonance in Au/Co/Au trilayers
The 83th. Japan Society of Applied Physics, Autumn Meeting
22 Sep. 2022, Oral presentation(general) - Investigation of Resonant Characteristics and Temperature Rise in the Si Waveguide Heater Integrated in Ring Resonators
The 83th. Japan Society of Applied Physics, Autumn Meeting
21 Sep. 2022, Oral presentation(general) - Evaluation of the relationship between c oupling length and oscillation characteristics
The 83th. Japan Society of Applied Physics, Autumn Meeting
21 Sep. 2022, Oral presentation(general) - Consideration of splitting characteristics of InP Bi-Level Directional Couplers
IEICE Society Conference
08 Sep. 2022, Oral presentation(general) - Examination of olfactory sensors based on Si waveguide ring resonators
IEICE Society Conference
07 Sep. 2022, Oral presentation(general) - Detection of Ethanol Gas and Study of Signal to Noise Ratio in a Au/Co/Au MOSPR Sensor
International Conference on Advanced Plasmonics, Magnetics, & Magneto-Optical Technologies (ICAPMOT 2022)
25 May 2022, Oral presentation(invited, special) - Characterization of Incident Angle and Wavelength Dependence of Surface Plasmon Resonance at a 1300 nm Wavelength Band
The 69th. JSAP Spring Meeting, 2022
23 Mar. 2022, Oral presentation(general) - Reduction of Propagation Loss in a Si Ring Resonator Transferred with Graphene
The 69th. JSAP Spring Meeting, 2022
22 Mar. 2022, Oral presentation(general) - Enhancing the Figure of Merit in Surface Plasmon Resonance Sensors with a Wedge-Shape Au Thin Film
The 26th MICROOPTICS CONFERENCE (MOC2021)
28 Sep. 2021, Poster presentation - 221K Local Heating in a Co Loaded Si Plasmonic Waveguide
The 26th MICROOPTICS CONFERENCE (MOC2021)
28 Sep. 2021, Poster presentation - 36.6 dB/mm Extinction Ratio in TE mode Semiconductor Optical Isolators with Co
The 26th MICROOPTICS CONFERENCE (MOC2021)
28 Sep. 2021, Poster presentation - Evaluation of Alcohol Gas Concentration by Si Ring Resonators with Transferred Graphene
The 82th. Japan Society of Applied Physics, Autumn Meeting
10 Sep. 2021, Oral presentation(general) - 50 times enhancement of the ethanol detection signal in a solid-state DNA decorated wedge-shape surface plasmon resonance sensor
BIOSENSORS 2021 - Online 31st Anniversary World Congress on Biosensors
28 Jul. 2021, Poster presentation - A Wedge-Shape Au Thin Film for Integrating Multiple Surface Plasmon Resonance Sensors in a Single Chip
International Conference on Advanced Plasmonics, Magnetics, & Magneto-Optical Technologies (ICAPMOT 2021)
28 May 2021, Oral presentation(invited, special) - Characterization of Round Trip Loss and Resonance of InP semiconductor ring resonators
The 68th. JSAP Spring Meeting, 2021
19 Mar. 2021, Oral presentation(general) - Evaluation of Propagation Loss and Extinction Ratio of Semiconductor Optical Isolators with Co
The 68th. JSAP Spring Meeting, 2021
19 Mar. 2021, Oral presentation(general) - Fabrication of Wedge-shape Surface Plasmon Resonance Sensor with Fe and Characterization of Magnetic Modulation of the Reflectivity
The 68th. JSAP Spring Meeting, 2021
18 Mar. 2021, Oral presentation(general) - Fabrication of Wedge-shape Surface Plasmon Resonance Sensor with Co and Characterization of Magnetic Modulation of the Reflectivity
The 68th. JSAP Spring Meeting, 2021
18 Mar. 2021, Oral presentation(general) - Evaluation of Temperature Rise in Si Plasmonic Waveguide Heaters Loaded with Metal Thin Film
The 68th. JSAP Spring Meeting, 2021
16 Mar. 2021, Oral presentation(general) - Modulation of Surface Plasmon Resonance by Magnetization Reversal in Au/Fe/Au Trilayer and Wedge Structure toward Higher Refractive Index Sensitivity
The 2020 International conference on Solid State Devices and Materials (SSDM 2020)
28 Sep. 2020, Oral presentation(general) - Characterization of the Adsorption Property of Ethanol molecules to Solid-State DNA by Surface Plasmon Resonance Sensors
The 81th. Japan Society of Applied Physics, Autumn Meeting
10 Sep. 2020, Oral presentation(general) - Evaluation of Ethanol Gas Concentration by Si Slot Waveguide Sensors and Enhanced Sensitivity by DNA decoration
The 81th. Japan Society of Applied Physics, Autumn Meeting
09 Sep. 2020, Oral presentation(general) - Fabrication and Evaluation of Si Plasmonic Waveguide heater with Metal
The 81th. Japan Society of Applied Physics, Autumn Meeting
09 Sep. 2020, Oral presentation(general) - Fabrication InP semiconductor ring lasers toward integration with TE mode semiconductor optical isolator
The 81th. Japan Society of Applied Physics, Autumn Meeting
08 Sep. 2020, Oral presentation(general) - Fabrication InP semiconductor ring lasers toward integration with TE mode semiconductor optical isolator
The 81th. Japan Society of Applied Physics, Autumn Meeting
08 Sep. 2020, Oral presentation(general) - Deposition of Ce:YIG with YIG buffer layer on SOI substrates and their propagation
The 67th. JSAP Spring Meeting, 2020
14 Mar. 2020, Oral presentation(general) - Characterization of Ethanol Detection of Surface Plasmon Resonance Sensors with DNA
The 67th. JSAP Spring Meeting, 2020
13 Mar. 2020, Oral presentation(general) - Fabrication of InP ring resonator and improvement of the coupling length
The 67th. JSAP Spring Meeting, 2020
12 Mar. 2020, Oral presentation(general) - Fabrication of Electrodes on InP TE mode semiconductor Optical Isolators by Electron-beam
The 67th. JSAP Spring Meeting, 2020
12 Mar. 2020, Oral presentation(general) - Characterization of polycrystalline YIG thin films on Si Substrates by RF Magnetron Sputtering and Annealing
The 80th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2019, Oral presentation(general) - Fabrication and characterization of Ce-substituted YIG thin films on Si substrate by sputtering with YIG buffer layer by MOD method
The 80th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2019, Oral presentation(general) - Design and Fabrication of Si Plasmonic Waveguide heater with Noble Metal
IEICE Society Conference
10 Sep. 2019, Oral presentation(general) - Plasmon Drag Effect in Base Metals
IEICE Society Conference
10 Sep. 2019, Oral presentation(general) - CO2 Detection with Si Slot Waveguide Ring Resonators toward On-chip Specific Gas Sensing
CLEO / QELS 2018 (Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference 2018)
09 May 2019, Poster presentation - Fabrication of InP ring resonator using microloading effect
The 66th. JSAP Spring Meeting, 2019
12 Mar. 2019, Oral presentation(general) - Study on Sensitivity Improvement of Si Slot Ring Resonators for Gas Sensing applications
The 66th. JSAP Spring Meeting, 2019
11 Mar. 2019, Oral presentation(general) - Characterization of Magnetic Modulation of Surface Plasmon Resonance on Al2O3/SiO2/Fe/Au Structures
The 66th. JSAP Spring Meeting, 2019
11 Mar. 2019, Poster presentation - Plasmon-enhanced hot electron emission at thin-TiO2/Au junction
The 66th. JSAP Spring Meeting, 2019
10 Mar. 2019, Oral presentation(general) - High FOM Surface Plasmon Resonance Transducers with Membrane Structure toward Gas Sensing Application
PHOTONICS WEST 2019
07 Feb. 2019, Oral presentation(general) - Improvement of RI resolution by modulating surface plasmon resonance in Otto configuration
The 79th. Japan Society of Applied Physics, Autumn Meeting
21 Sep. 2018, Oral presentation(general) - Characterization of Surface Plasmon Resonance on Au Thin Film in Optical Telecommunication Wavelength
The 79th. Japan Society of Applied Physics, Autumn Meeting
21 Sep. 2018, Oral presentation(general) - Investigation of Influence of Proximity Effect in Fabrication Process of InP Ring Resonator
The 79th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2018, Oral presentation(general) - Analysis of TE Mode Magneto-Optic Figure of Merit in Si Plasmonic Waveguide with Ferromagnetic / Noble Metal Hybrid Structure
The 79th. Japan Society of Applied Physics, Autumn Meeting
18 Sep. 2018, Oral presentation(general) - Fabrication and Characterization of InP Ring Resonators by Bi-level etching
IEICE Society Conference
14 Sep. 2018, Oral presentation(general) - Spintronic and Magnetic Devices based on Si Photonics －Optical isolators and memory in Silicon photonics－
The 28th Silicon Photonics Meeting
25 Jul. 2018, Oral presentation(invited, special) - High Q Si Slot Waveguide Ring Resonators for Gas Sensing Application
CLEO / QELS 2018 (Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference 2018)
17 May 2018, Poster presentation - Characterization of Refractive Index of Metal Thin Films and Sensitivity in Magnetooptic Surface Plasmon Resonance Sensors with Otto Configuration
The 65th. JSAP Spring Meeting, 2018
18 Mar. 2018, Oral presentation(general) - Fabrication and Characterization of Bi2.5-substituted YIG Thin Films on a sidewall of Si waveguide by Metal Organic Decomposition Method
The 65th. JSAP Spring Meeting, 2018
18 Mar. 2018, Oral presentation(general) - Evaluations of waveguides based on resonance characteristics in Si ring resonators
The 65th. JSAP Spring Meeting, 2018
18 Mar. 2018, Oral presentation(general) - Fabrication of Si slot waveguide ring resonators and the resonance characteristics toward gas sensing application
集積光デバイスと応用技術時限研究専門委員会(IPDA)第2回研究会
10 Nov. 2017, Poster presentation - Refractive Index of Metal Thin Films and RI Resolution in Surface Plasmon Resonance Sensors with Otto Configuration
集積光デバイスと応用技術時限研究専門委員会(IPDA)第2回研究会
10 Nov. 2017, Poster presentation - Optimization of Figure of Merit in Magneto-Plasmonic Waveguides with Fe / Au Multilayer and Nonreciprocal Coupling on SOI substrate
The 2017 International conference on Solid State Devices and Materials (SSDM 2017)
21 Sep. 2017, Poster presentation - (Invited Talk) Preparation of Magnetic Garnet Thin Films on Si/Glass Substrates and Application to Integratable Optical Isolators
IEICE Society Conference
13 Sep. 2017, Oral presentation(invited, special) - (Invited Talk at Symposium "Frontier of the studies weaved by light and spins")Spintronics and Magnetics in Si Photonics
The 78th. Japan Society of Applied Physics, Autumn Meeting
06 Sep. 2017, Oral presentation(invited, special) - Optimization of figure of merit in TE-mode semiconductor waveguide optical isolators
The 78th. Japan Society of Applied Physics, Autumn Meeting
06 Sep. 2017, Oral presentation(general) - Design and Fabrication of Plasmonic Isolators Integrated with Si Waveguides
The 78th. Japan Society of Applied Physics, Autumn Meeting
06 Sep. 2017, Oral presentation(general) - Fabrication and Characterization of Bi2.5-substituted YIG Thin Films on Glass Substrates by Metal Organic Decomposition Method
The 78th. Japan Society of Applied Physics, Autumn Meeting
06 Sep. 2017, Oral presentation(general) - Preparation of Bi-substituted YIG Thin Films on Si Substrates by Metal Organic Decomposition Method and Their Faraday Rotation at Telecommunication Wavelength
The 78th. Japan Society of Applied Physics, Autumn Meeting
06 Sep. 2017, Oral presentation(general) - Design and Analysis of Nonreciprocal Coupling in Si Hybrid Plasmonic Waveguides
The 64rd. JSAP Spring Meeting, 2017
17 Mar. 2017, Oral presentation(general) - Analysis of Nonreciprocal Phase Shift in Si Wire Waveguides with Magnetic Garnet at the Sidewall
The 64rd. JSAP Spring Meeting, 2017
17 Mar. 2017, Oral presentation(general) - Faraday Rotation Spectra of Bi-substituted YIG Thin Films with thinner YIG buffer layer on Glass Substrates by Metal Organic Decomposition Method
The 64rd. JSAP Spring Meeting, 2017
17 Mar. 2017, Oral presentation(general) - Design of a Directional Coupler for TE mode Unidirectional Semiconductor Ring Laser
The 64rd. JSAP Spring Meeting, 2017
16 Mar. 2017, Oral presentation(general) - Study of the electric characteristics at the interface between Al2O3 and p-InP substrate by C-V measurement
The 64rd. JSAP Spring Meeting, 2017
16 Mar. 2017, Oral presentation(general) - Fabrication and Characterization of InP Bend Optical Waveguides by Edge-Enhancement Electron-Beam Writing
The 64rd. JSAP Spring Meeting, 2017
16 Mar. 2017, Oral presentation(general) - Study on optimization of the sensor sensitivity in Si slot wave guides
The 64rd. JSAP Spring Meeting, 2017
15 Mar. 2017, Poster presentation - Relationship between electrical property and fabrication conditions of magnetic garnet thin films
The 64rd. JSAP Spring Meeting, 2017
14 Mar. 2017, Poster presentation - Analysis of the Nonreciprocal Coupling and Extinction ratio in a Si Waveguide with Plasmonic Waveguide composed of Ferromagnetic and Nobel metals
The 77th. Japan Society of Applied Physics, Autumn Meeting
18 Sep. 2016, Oral presentation(general) - Characterization of the Relationship between magneto-optic effect / optical absorption of Ce-substituted YIG thin films and O2 flow ratio during the sputtering
The 77th. Japan Society of Applied Physics, Autumn Meeting
18 Sep. 2016, Oral presentation(general) - Evaluation of surface plasmon excitation at the interface of ferromagnetic metal and dielectric thin films
The 63rd. JSAP Spring Meeting, 2016
20 Mar. 2016, Oral presentation(general) - Design and Fabrication of Vertical Directional Si couplers
The 63rd. JSAP Spring Meeting, 2016
20 Mar. 2016, Oral presentation(general) - Anisotropy and frequency-dependent FDTD method programed by Mathematica®
The 63rd. JSAP Spring Meeting, 2016
19 Mar. 2016, Oral presentation(general) - Evaluation of Surface Plasmon Excitation at the Interface of Ferromagnetic Metal and Dielectric Thin films with Otto Configuration
集積光デバイスと応用技術時限研究専門委員会(IPDA)第3回研究会
03 Mar. 2016, Poster presentation - Reduction of the Extinction Coefficient of Amorphous Silicon Thin Film by Electron Beam Deposition
集積光デバイスと応用技術時限研究専門委員会(IPDA)第3回研究会
03 Mar. 2016, Poster presentation - Fabrication and characterization of InP bending waveguides
IEICE Society Conference 2015
09 Sep. 2015, Oral presentation(general) - Excitation of surface plasmon in the ferromagnetic metal-dielectric interface under Otto configuration
IEICE Society Conference 2015
08 Sep. 2015, Oral presentation(general) - Design of Plasmonic Optical Isolators Based on Nonreciprocal Coupling
IEICE Society Conference 2015
08 Sep. 2015, Oral presentation(general) - Design of OpticalIsolators Utilizing Directional Coupling within Asymmetric Waveguides
The 11th Conference on Lasers and Electro-Optics Pacific Rim(CLEO-PR 2015)
27 Aug. 2015, Oral presentation(general) - Dielectric-Loaded Magnetic and Nonmagnetic Plasmonic Waveguides on SOI Wafer
The 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR 2015)
27 Aug. 2015, Oral presentation(general) - Integrated optical isolators using magnetic surface plasmon
SPIE 2015 Optics+Photonics,
15 Aug. 2015, Oral presentation(invited, special) - 表面プラズモンを用いたSi基板上集積光アイソレータ
Symposium for International Year of Light and Light-based Technologies
21 Apr. 2015, Poster presentation - Design of Si Waveguide Plasmonic Optical Isolators Based on Nonreciprocal Coupling
The 62nd. JSAP Spring Meeting, 2015
11 Mar. 2015, Oral presentation(general) - Design of Optical Isolators utilizing Directional Coupling within Asymmetric Waveguides
The 62nd. JSAP Spring Meeting, 2015
11 Mar. 2015, Oral presentation(general) - Excitation of surface plasmon at the interface between ferromagnetic metal / dielectric film by Otto configuration
電子情報通信学会 レーザ・量子エレクトロニクス研究会
31 Oct. 2014, Oral presentation(general) - Fabrication and characterization of TE-mode waveguide optical isolators
The 75th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2014, Oral presentation(general) - A Design of Optical Isolators Utilizing Double Dielectric Plasmonic Waveguide
The 75th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2014, Oral presentation(general) - Enhancement of Magneto-optical effect by Surface Plasmons in Al2O3/SiO2/Fe Multilayers
The 75th. Japan Society of Applied Physics, Autumn Meeting
18 Sep. 2014, Poster presentation - Difference in magneto-optical effect of Ce-substituted Yttrium Iron Garnet by O2 flow rate during the sputtering deposition
The 75th. Japan Society of Applied Physics, Autumn Meeting
18 Sep. 2014, Oral presentation(general) - Analysis of TE mode Unidirectional Semiconductor Ring Lasers by Lamb equations
The 75th. Japan Society of Applied Physics, Autumn Meeting
18 Sep. 2014, Oral presentation(general) - Double-Dielectric-Loaded Plasmonic Optical Isolator for Integration into Photonic Integrated Circuits
The 2014 International conference on Solid State Devices and Materials (SSDM 2014)
10 Sep. 2014, Oral presentation(general) - Monolithically integrable semiconductor optical isolators utilizing surface plasmon
東京農工大学 新技術説明会
17 Jun. 2014, Oral presentation(general) - Fabrication and characterization of TE-mode passive waveguide optical isolators and bending waveguides
電子情報通信学会 光エレクトロニクス（OPE）研究会 4月研究会
24 Apr. 2014, Poster presentation - A theory of TE Mode Unidirectional Semiconductor Ring Laser and Estimation of Isolation
電子情報通信学会 光エレクトロニクス（OPE）研究会 4月研究会
24 Apr. 2014, Poster presentation - Optical Isolator Utilizing Surface Plasmons in Ferromagnetic Metal / Double-dielectric Layers for Integration into Photonic Integrated Circuits
PASPS-18(Physics and Applications of Spin-related Phenomena in Semiconductors)
09 Dec. 2013, Poster presentation - NEW DESIGN OF OPTICAL ISOLATOR UTILAZING SURFACE PLASMONS
MORIS (Magnetics and Optics Research International Symposium for New Storage Technology) 2013
05 Dec. 2013, Oral presentation(general) - CE-SUBSTITUTED YTTRIUM IRON GARNETS PREPARED BY RF SPUTTERING AND THEIR STRUCTUAL AND MAGNETO-OPTICAL PROPERTIES
MORIS (Magnetics and Optics Research International Symposium for New Storage Technology) 2013
03 Dec. 2013, Poster presentation - Characterizations of TE mode semiconductor optical isolators for unidirectional semiconductor ring lasers
電子情報通信学会 レーザ・量子エレクトロニクス研究会
25 Oct. 2013, Oral presentation(general) - A Design of Optical Isolator Utilizing Surface Plasmons in Co / Al2O3 / AlGaAs waveguides for Integration into Photonic Integrated Circuits
the 2013 International Conference on Solid State Devices and Materials (SSDM 2013)
26 Sep. 2013, Poster presentation - A Design of Integrated Optical Isolators Utilizing Surface Plasmon in Co / Al2O3 / AlGaAs Waveguide
The 74th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2013, Oral presentation(general) - Characterizations of the Device Structure Dependence of the Extinction Ratio in Semiconductor Waveguide Optical Isolators
The 74th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2013, Oral presentation(general) - Design of TE mode Unidirectional Semiconductor Ring Lasers based on Nonreciprocal Loss
The 74th. Japan Society of Applied Physics, Autumn Meeting
19 Sep. 2013, Oral presentation(general) - Semiconductor Optical Isolators for Integrated Optics (Invited Presentation)
SPIE 2013 Optics+Photonics, Proceedings of SPIE Optics and Photonics 2013: nanoScience, Volume 8813: Spintronics VI
29 Aug. 2013, Oral presentation(invited, special) - Measurement of carbon dioxide concentration by fiber loop ring-down spectroscopy for telemetering
•The 10th Conference on Lasers and Electro-Optics Pacific Rim(CLEO-PR 2013)
03 Jul. 2013, Poster presentation - Estimation of the threshold current in the unidirectional semiconductor ring lasers
2013年春季 第60回 応用物理学関係連合講演会
29 Mar. 2013, Oral presentation(general) - Telemetering of carbon dioxide concentration by using fiber loop ring-down spectroscopy
2013年春季 第60回 応用物理学関係連合講演会
27 Mar. 2013, Oral presentation(general) - ファイバループ型キャビティリングダウン分光法を用いた二酸化炭素濃度の測定
電通大・農工大第９回合同シンポジウム「ナノ未来材料とコヒーレント光科学」
15 Dec. 2012, Poster presentation - 半導体レーザを用いたメタンガス濃度の測定系の構築
電通大・農工大第９回合同シンポジウム「ナノ未来材料とコヒーレント光科学」
15 Dec. 2012, Poster presentation - 半導体リングレーザにおける方向性結合器の設計としきい値電流の予測
電通大・農工大第９回合同シンポジウム「ナノ未来材料とコヒーレント光科学」
15 Dec. 2012, Poster presentation - 光利得部と非相反伝搬部を分離した半導体光アイソレータの設計
電通大・農工大第９回合同シンポジウム「ナノ未来材料とコヒーレント光科学」
15 Dec. 2012, Poster presentation - Control of Lasing States in Magnetic Bistable Laser Diode
電子情報通信学会 レーザ・量子エレクトロニクス研究会
25 Oct. 2012, Oral presentation(general) - Unidirectional Semiconductor Ring Lasers using Semiconductor Optical Isolators
電子情報通信学会 レーザ・量子エレクトロニクス研究会
25 Oct. 2012, Oral presentation(general) - Magneto-optical properties of ferromagnetic metal nanoclusters
The 73rd Japan Socirty of Applied Physics, Autumn Meeting
14 Sep. 2012, Oral presentation(general) - Magnetically Controllable Hysteresis Loop in Semiconductor Nonreciprocal Bistable Lasers
The 17th OptoElectronics and Communications Conference
06 Jul. 2012, Oral presentation(general) - Observation of Hysteresis Behavior in Nonreciprocal Bistable Lasers
2012年春季 第59回 応用物理学関係連合講演会
17 Mar. 2012, Oral presentation(general) - Extinction Characteristics of Nonreciprocal Laser Diodes in Remanent Magnetization States
2012年春季 第59回 応用物理学関係連合講演会
17 Mar. 2012, Oral presentation(general) - Semiconductor / Ferromagnetic metal hybrid semiconductor lasers for optical information processing
The Magnetics Society of Japan
31 Jan. 2012, Oral presentation(invited, special) - 光情報信号処理に向けた強磁性金属集積半導体レーザ
電通大・農工大第８回合同シンポジウム「ナノ未来材料とコヒーレント光科学」
10 Dec. 2011, Poster presentation - Reduced Threshold Current in Magnetically Controllable Unidirectional Semiconductor Ring Lasers
The 16th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-16)
29 Nov. 2011, Oral presentation(general) - Magnetically Controllable Optical Intensity and Mode Redistribution in Semiconductor Active Optical Isolators
The 2011 International Conference on Solid State Devices and Materials (SSDM2011)
28 Sep. 2011, Oral presentation(general) - Magnetically Controllable Fabry-Perot Lasers and Unidirectional Ring Lasers
5th International Workshop on Spin Currents
26 Jul. 2011, Poster presentation - Magnetically Controllable Semiconductor Lasers For Reconfigurable Optical Buffering Memories
MORIS (Magnetics and Optics Research International Symposium for New Storage Technology) 2011
22 Jun. 2011, Poster presentation - Magnetically Controllable Fabry-Perot Lasers with Ferromagnetic Metals
2011年春季 第58回 応用物理学関係連合講演会
24 Mar. 2011, Oral presentation(general) - Characterization of FeCo Semiconductor Optical Isolators based on Nonreciprocal Polarization Rotation
2011年春季 第58回 応用物理学関係連合講演会
24 Mar. 2011, Oral presentation(general) - TEモードハイブリッド光アイソレータを集積した一方向発振マイクロリングレーザ
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成22年度成果報告会
Jan. 2011, Poster presentation - 半導体光アイソレータを用いた双安定半導体レーザの強磁性電極依存性
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成22年度成果報告会
Jan. 2011, Poster presentation - 半導体光アイソレータの軸方向光子密度分布の高性能化と光情報信号メモリへの応用
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成22年度成果報告会
Jan. 2011, Oral presentation(general) - Semiconductor / Ferromagnetic Metal Hybrid Optical Isolators using Nonreciprocal Polarization Rotation
the 2010 International Conference on Solid State Devices and Materials (SSDM2010)
24 Sep. 2010, Oral presentation(general) - 半導体光アイソレータを用いた一方向発振リングレーザの外部磁場依存性
電子情報通信学会 2010年ソサイエティ大会
16 Sep. 2010, Oral presentation(general) - 非相反偏光回転を利用した半導体光アイソレータ
電子情報通信学会 2010年ソサイエティ大会
16 Sep. 2010, Oral presentation(general) - Design and fabrication of unidirectional ring lasers using semiconductor/ferromagnetic metal hybrid optical isolators
the 6th International Conference on the Physics and Application of Spin Related Phenomena in Semiconductors
03 Aug. 2010, Poster presentation - Optical Intensity Modulation and Bistability in Nonreciprocal Semiconductor Laser Diodes for Reconfigurable Optical Flip-Flop Memories
the 6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors
03 Aug. 2010, Poster presentation - Fabrication of Evanescent Semiconductor Optical Isolators for High Saturation Power
15th OptoElectronics and Communications Conference
09 Jul. 2010, Oral presentation(general) - 半導体光アイソレータを用いた双安定半導体レーザの研究
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成22年度研究会
Jun. 2010, Poster presentation - 半導体光アイソレータを用いた一方向発振リングレーザの作製プロセスの確立
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成22年度研究会
Jun. 2010, Poster presentation - 半導体光アイソレータの光子密度分布を利用した光情報信号メモリ
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成22年度研究会
Jun. 2010, Oral presentation(general) - Unidirectional Semiconductor Ring Lasers Integrated with Semiconductor Optical Isolators
Conference on Lasers and Electro Optics
20 May 2010, Oral presentation(general) - Spintronics: Future vision and history
2010年春季 第57回 応用物理学関係連合講演会 特別企画シンポジウム「応用物理学の将来ビジョン」
18 Mar. 2010, Other - Fabrication of Semiconductor Waveguide Optical Isolators Considering Saturation Power
電子情報通信学会 2010年総合大会
18 Mar. 2010, Oral presentation(general) - Optimization of strained MQW active layer for transparent semiconductor optical isolators
電子情報通信学会 2010年総合大会
18 Mar. 2010, Oral presentation(general) - 半導体光アイソレータの現状と応用 (招待講演)
電子情報通信学会 2010年総合大会
16 Mar. 2010, Oral presentation(invited, special) - Novel Light Controlling Devices Utilizing Longitudinal Photon Distribution in Semiconductor Optical Isolators
日本磁気学会 第29回スピンエレクトロニクス専門研究会
15 Mar. 2010, Oral presentation(invited, special) - TMモード半導体光アイソレータにおける量子井戸活性層の伸張歪の影響
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度成果報告会
Jan. 2010, Oral presentation(general) - 半導体光アイソレータを用いた一方向発振リングレーザの強磁性電極特性
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度成果報告会
Jan. 2010, Poster presentation - 半導体光アイソレータを用いた光共振器の光子密度の制御と光フリップフロップメモリへの応用
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度成果報告会
Jan. 2010, Oral presentation(general) - Design and Fabrication of Unidirectional Ring Lasers using Semiconductor Optical Isolators
電子情報通信学会 レーザ・量子エレクトロニクス研究会
29 Jan. 2010, Other - Design of Evanescent Semiconductor Waveguide Optical Isolators
9th International Conference on Numerical Simulation of Optoelectronic Devices
15 Sep. 2009, Oral presentation(general) - Characterization of the Propagation loss in Semiconductor / Ferromagnet Hybrid Waveguide Optical Isolators
2009年秋季 第69回応用物理学会学術講演会
10 Sep. 2009, Oral presentation(general) - Isolation and Saturation Characteristics of Evanescent Mode Semiconductor Waveguide Optical Isolators
2009年秋季 第69回応用物理学会学術講演会
10 Sep. 2009, Oral presentation(general) - PrCoB薄膜の磁気光学効果と導波路光アイソレータへの応用
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度研究会
Aug. 2009, Poster presentation - 半導体強磁性金属ハイブリッド導波路光アイソレータの伝搬損失の評価
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度研究会
Aug. 2009, Poster presentation - エバネセントモード半導体導波路光アイソレータのアイソレーション特性と飽和特性
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度研究会
Aug. 2009, Poster presentation - 半導体光アイソレータを用いた一方向発振リングレーザ
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成21年度研究会
Aug. 2009, Oral presentation(general) - NONRECIPROCAL SEMICONDUCTOR LASER DIODES FOR BISTABLE OPTICAL FLIP-FLOP MEMORIES
Magnetics and Optics Research International Symposium for New Storage Technology 2009
16 Jun. 2009, Poster presentation - TEモード半導体光アイソレータの高信頼化構造とSOI基板上導波路光アイソレータへの応用
2009年春季 第56回応用物理学関係連合講演会
02 Apr. 2009, Oral presentation(general) - スパッタ製膜Ti1-xCoxO2-d薄膜の磁気光学性能指数の評価
2009年春季 第56回応用物理学関係連合講演会
01 Apr. 2009, Oral presentation(general) - 新たな光集積回路に向けた半導体能動導波路光アイソレータ (招待講演)
電子情報通信学会 2009年総合大会
18 Mar. 2009, Oral presentation(invited, special) - スパッタ製膜Ti1-xCoxO2-d薄膜の磁気光学性能指数の評価
特定領域研究「スピン流の創出と制御」2008年度成果報告会
08 Jan. 2009, Poster presentation - 埋め込みトンネル接合を用いたハイブリッド光アイソレータの作製
特定領域研究「スピン流の創出と制御」2008年度成果報告会
08 Jan. 2009, Poster presentation - エバネセントモードハイブリッド光アイソレータとシリコンフォトニクスへの応用
特定領域研究「スピン流の創出と制御」2008年度成果報告会
07 Jan. 2009, Other - 1.5-μm-band, TM-mode waveguide optical isolator that uses nonreciprocal loss induced by ferromagnetic MnSb
The 53rd Magnetism and Magnetic Materials Conference
12 Nov. 2008, Oral presentation(general) - Characterization of Magneto-Optical Properties of Epitaxial MnSb and Polycrystalline Co, Fe Thin Films
The 69 th Autumn Meeting, 2008, The Japan Society of Applied Physics
03 Sep. 2008, Poster presentation - 光スピントロニクス機能デバイスの研究
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成20年度研究会
24 Jul. 2008, Other - エピタキシャルMnSb 薄膜と多結晶Co, Fe 薄膜の磁気光学性能の比較
文部科学省科学研究費補助金 特定領域研究「スピン流の創出と制御」平成20年度研究会
23 Jul. 2008, Poster presentation - Phase Modulator with InGaAs/InAlAs FACQW Grown by MOVPE
the Opto-Electronics and Communications Conference (OECC) and the Australian Conference on Optical Fibre Technology (ACOFT) 2008
08 Jul. 2008, Oral presentation(general) - Semiconductor Waveguide Optical Isolators Incorporating Ferromagnetic Epitaxial MnX (X=As or Sb)
CLEO / QELS 08 (Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference 2008)
08 May 2008, Oral presentation(general) - Integrable Semiconductor Optical Isolators Towards Larger Optical Isolation utilizing Nonreciprocal Phase Shift
CLEO / QELS 08 (Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference 2008)
08 May 2008, Oral presentation(general) - MOVPE法によるInGaAs/InAlAs FACQWの作製と位相変調特性評価
2008年春季 第55回応用物理学関係連合講演会
29 Mar. 2008, Oral presentation(general) - 大きな光アイソレーションに向けた非相反位相変化を用いた半導体光アイソレータの設計
2008年春季 第55回応用物理学関係連合講演会
28 Mar. 2008, Oral presentation(general) - 半導体導波路光アイソレータの高性能化に向けた強磁性金属薄膜の横磁気カー効果の評価
2008年春季 第55回応用物理学関係連合講演会
28 Mar. 2008, Oral presentation(general) - Semiconductor / ferromagnet hybrid optical isolators: physics, devices, and applications
The 159th Topical Symposium of the Magnetic Society of Japan The 20th Topical symposium of Spin-electronics
03 Mar. 2008, Oral presentation(invited, special) - 光スピントロニクス機能デバイスの研究
特定領域研究「スピン流の創出と制御」成果報告会
28 Feb. 2008, Other - 光スピントロニクス機能デバイスの研究 ～半導体電気光学偏光変調器の開発
特定領域研究「スピン流の創出と制御」成果報告会
27 Feb. 2008, Poster presentation - 大きな光アイソレーションに向けた非相反位相変化を用いた半導体光アイソレータの設計
特定領域研究「スピン流の創出と制御」成果報告会
27 Feb. 2008, Poster presentation - High Temperature Operation of a Hybrid Optical Isolator with Ferromagnetic MnSb
第12回 「半導体スピン工学の基礎と応用」研究会
21 Dec. 2007, Oral presentation(general) - High Temperature Operation of TM-mode Nonreciprocal-Loss Waveguide Optical Isolator with Ferromagnetic MnSb
20th Annual Meeting of the IEEE Lasers and Electro-Optics Society
18 Oct. 2007, Oral presentation(general) - Preparation and Characterization of MnSb Thin Films for Spin-photonics Devices
34th International Symposium on Compound Semiconductors
16 Oct. 2007, Poster presentation - 光スピントロニクス機能デバイスの研究
東北大学電気通信研究所共同プロジェクト研究会「スピンエレクトロニクスの新展開」、 特定領域研究キックオフミーティング「スピン流の創出と制御」
05 Oct. 2007, Oral presentation(general) - Fabrication of InGaAs/InAlAs Five-layer Asymmetric Coupled Quantum Well by MOVPE and MBE and Their Characterization
2007年秋季 第68回応用物理学会学術講演会
06 Sep. 2007, Oral presentation(general) - Crystallographic characterization of MnSb layers for spin-photonics devices
2007年秋季 第68回応用物理学会学術講演会
05 Sep. 2007, Oral presentation(general) - Characterization of the nonreciprocal reflectivity in a ferromagnetic metal thin film
2007年秋季 第68回応用物理学会学術講演会
05 Sep. 2007, Oral presentation(general) - High temperature operation of TM-mode waveguide optical isolator based on nonreciprocal loss induced by ferromagnetic MnSb
2007年秋季 第68回応用物理学会学術講演会
04 Sep. 2007, Oral presentation(general) - Characterization of nonlinear nonreciprocal propagation in semiconductor amplifying waveguide optical isolators
2007年秋季 第68回応用物理学会学術講演会
04 Sep. 2007, Oral presentation(general) - Single Mode Operation of 1.5μm TM Mode Waveguide Optical Isolators Based on the Nonreciprocal-Loss Phenomenon
Conference on Lasers and Electro-Optics, Quantum Electronics and Laser Science Conference 2007
08 May 2007, Oral presentation(general) - Carrier-Depletion-Type Multiple Quamtum Well Optical Phase Modulators Operating at the 1.55um Wavelength Range
European Conference on Integrated Optics 2007
25 Apr. 2007, Oral presentation(general) - 不純物を含むInGaAlAs MQWにおける逆バイアス時のキャリア効果と位相変調特性への影響
2007年春季 第54回応用物理学関係連合講演会
30 Mar. 2007, Oral presentation(general) - 非相反損失半導体導波路光アイソレータの低損失化および単一モード伝搬の確認
2007年春季 第54回応用物理学関係連合講演会
30 Mar. 2007, Oral presentation(general) - 強磁性体・半導体ハイブリッド構造光デバイスのためのMnSb 結晶薄膜の成長と評価
2007年春季 第54回応用物理学関係連合講演会
27 Mar. 2007, Oral presentation(general) - モノリシック集積化可能な半導体能動導波路光アイソレータ
電子情報通信学会 2007年総合大会 招待講演
22 Mar. 2007, Oral presentation(invited, special) - Design and demonstration of semiconductor active waveguide optical isolators
6th International Conference on Numerical Simulation of Optoelectronic Devices, invited presentation
12 Sep. 2006, Oral presentation(invited, special) - A nonreciprocal optical device using ferromagnet-semiconductor hybrid structures
Spintech III, invited presentation
05 Aug. 2005, Oral presentation(invited, special) - A nonreciprocal optical device using ferromagnetic metal / semiconductor optical amplifier hybrid structures
The Workshop on Thermal & Optical Magnetic Materials And Devices (MORIS 2006 WORKSHOP), invited presentation
08 Jun. 2006, Oral presentation(invited, special) - Integrable Semiconductor Active Optical Isolators
Integrated Photonics Research and Applications Topical Meeting and Nanophotonics Topical Meeting (IPRA / NPIS 2006), invited presentation
25 Apr. 2006, Oral presentation(invited, special) - 強磁性金属・半導体光増幅器ハイブリッドによる非相反磁気光学デバイス
平成18年電気学会全国大会 シンポジウム「ナノ構造磁性体と光・高周波応用技術」 招待講演
15 Mar. 2006, Oral presentation(invited, special) - Novel optical isolator integratable with semiconductor devices
Ninth International Symposium on Contemporary Photonics Technology (CPT 2006), invited presentation
13 Jan. 2006, Oral presentation(invited, special) - 半導体／強磁性金属ハイブリッドによる光通信波長帯導波路型光アイソレータ
第52回応用物理学関係連合講演会 シンポジウム「スピンの制御と検出の最前線」 招待講演
30 Mar. 2005, Oral presentation(invited, special) - First Monolithic Integration of a Waveguide Optical Isolator with a Distributed Feedback Laser Diode
2006 IEEE 20th International Semiconductor Laser Conference
19 Sep. 2006, Oral presentation(general) - エピタキシャル強磁性電極MnAsを用いた非相反損失型半導体導波路光アイソレータのゼロ磁場動作
2006年秋季 第67回応用物理学会学術講演会
01 Sep. 2006, Oral presentation(general) - InGaAs / InAlAs二重結合量子井戸を用いた電気光学位相変調器の作製
2006年秋季 第67回応用物理学会学術講演会
01 Sep. 2006, Oral presentation(general) - Optical Waveguide Isolator Based on Nonreciprocal Loss Shift Induced by Ferromagnetic MnAs
The 17th International Conference on Magnetism
21 Aug. 2006, Oral presentation(general) - Demonstration of Semiconductor Waveguide Optical Isolator Monolithically Integrated Distributed Feedback Laser Diodes
4th International Conference on Physics and Applications of Spin Related Phenomena in Semiconductors
18 Aug. 2006, Oral presentation(general) - Enhancement of the nonlinear polarization rotation in InGaAlAs multiple-quantum-well electro-absorption modulators
The 11th OptoElectronic and Communication Conference
04 Jul. 2006, Oral presentation(general) - Monolithically Integrable Semiconductor Waveguide Optical Isolators using III-V Semiconductor / Ferromagnet Hybrid Structures
Device Research Conference (DRC 2006)
28 Jun. 2006, Oral presentation(general) - エピタキシャル強磁性電極MnAsを用いた非相反損失変化に基づく導波路型光アイソレータ
2006年春季 第53回応用物理学関係連合講演会
25 Mar. 2006, Oral presentation(general) - 非相反損失に基づく導波路光アイソレータモノリシック集積DFBレーザの実証
2006年春季 第53回応用物理学関係連合講演会
25 Mar. 2006, Oral presentation(general) - TM Mode Optical Waveguide Isolator with 8.8dB/mm Nonreciprocal Propagation Induced by Ferromagnetic MnAs
Optical Fiber Communication Conference and Exhibition 2006
10 Mar. 2006, Oral presentation(general) - 10Gb/s Wavelength Conversion Using Polarization Dependence of Cross-Phase Modulation in an InGaAlAs Multiple-Quantum-Well Electroabsorption Modulator
The 10th OptoElectronic and Communication Conference
08 Jul. 2005, Oral presentation(general) - TM mode waveguide optical isolator based on the nonreciprocal loss shift
The 17th Indium Phosphide and Related Materials Conference
May 2005, Oral presentation(general) - Wavelength Conversion using Polarization Dependence of Cross-Phase Modulation in an InGaAlAs Multiple Quantum-Well Electroabsorption Modulator
The 17th Indium Phosphide and Related Materials Conference
May 2005, Oral presentation(general) - 14.7dB/mm TE mode Nonreciprocal Propagation in an InGaAsP/InP Active Waveguide Optical Isolator
2005 Optical Fiber Communication Conference and Exhibition
10 Mar. 2005, Oral presentation(general) - Fabrication of a TE mode Semiconductor-Waveguide-type Optical Isolator Based on the Nonreciprocal Loss shift
2004 fall meeting of the Material Research Society
Nov. 2004, Oral presentation(general) - First Demonstration of TE Mode Nonreciprocal Propagation in a Semiconductor Active Waveguide for Integratable Optical Isolator
24th International Semiconductor Laser Conference
24 Sep. 2004, Oral presentation(general)
Committee Memberships
- IEICE
Associate Editor, IEICE Electronics Express (ELEX)
From 20220601, To 20240531 - IEICE Electronics Society
Manager of technical liaison issues
From 20170601, To 20190531 - International Conference on Solid State Devices and Materials, Program Committee
幹事
From 20130401, To 20220930
Media Coverage
- シリコン光回路とコバルトを組み合わせた超小型ヒーター、農工大が開発
東京農工大学の清水大雅准教授らの研究チームが、遷移金属のコバルト(Co)を積層したシリコン(Si)光導波路(Siプラズモニック導波路)に光が到達し、吸収された光が発熱する際の温度上昇を金属の抵抗の変化を測定することにより明らかにし、それを活用した局所加熱ヒーターの開発に成功したことを発表したことが紹介される。
マイナビニュース
From 22 Oct. 2021, To 22 Oct. 2021
Professional Memberships
Awards
- IEICE
エレクトロニクスソサイエティ活動功労表彰
電子情報通信学会エレクトロニクスソサイエティにおける企画運営に関する活動への功労者表彰
17 Mar. 2020 - 国立大学法人 東京農工大学
東京農工大学 工学府ベストリサーチャー賞
平成20年度工学府研究分野における顕著な成績
14 Jan. 2009 - Japan Society of Applied Physics
2005 JJAP Award for the most promising young scientist
導波路型光アイソレータは端面発光型半導体レーザとのモノリシック集積化や高機能光集積回路の実現が可能になることから、その実現が望まれている。非相反損失変化型の導波路型光アイソレータは、半導体光増幅器に強磁性金属を蒸着するだけという簡易なデバイス構成ですみ、これまで理論的に提案されてきたが、実証例はなかった。我々はInGaAsP半導体光増幅器をハイメサ導波路に加工し、側壁にFe薄膜を蒸着することにより、波長1560nmのTEモード光に対して9.3dB/mmの非相反損失効果を観測することに世界で初めて成功した。これにより従来困難であった、半導体レーザと光アイソレータの集積化が可能になると考えられる。
07 Sep. 2005 - Material Research Society
Best Paper Nominations (Ribbon Awards), 2004 Fall meeting of Material Research Society
Jan. 2005 - Magnetic Society of Japan
Magnetic Society of Japan, Young Scientist Award 2001
26 Sep. 2001 - Japan Society of Applied Physics
The 9th Young Scientist Award for the Presentation of an Excellent Paper at the 2000 JSAP, the 61th Autumn Meeting
20 Nov. 2000