• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study on the crossover from semiconductor gain-switched lasers to superradiance and the limit of short-pulse generation

Research Project

Project/Area Number 18H01469
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionThe University of Tokyo

Principal Investigator

AKIYAMA HIDEFUMI  東京大学, 物性研究所, 教授 (40251491)

Co-Investigator(Kenkyū-buntansha) 挾間 優治  東京大学, 物性研究所, 助教 (80759150)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords半導体レーザー / 利得スイッチ / 超放射 / 光物性 / 非線形性 / 超放射、光物性 / 半導体物性
Outline of Final Research Achievements

In order to quantitatively evaluate emerging quantum mechanical coherence in the electronic system, and to characterize crossover from gain switching to superradiance, the phase relaxation time was measured in the presence of high-density electron-hole carriers forming population inversion. When the carrier density was gradually increased from weak to intense excitation conditions, the phase relaxation time decreased from several ps to below our time resolution, but then increased to 0.34 ps when population inversion region was formed. Theoretical calculations were made at the level of the second-order perturbation in the semiconductor Bloch equations, which explained the experimental results consistently.

Academic Significance and Societal Importance of the Research Achievements

半導体レーザーからの利得スイッチ型の短パルス発生において、超放射の寄与が発生する可能性について肯定的な結論が得られた。利得スイッチから超放射のクロスオーバーに至るレベルまで半導体レーザーからの高速パルスを単発直接発生できれば、パルス繰り返しや発生タイミングの自在制御が可能な小型堅牢光源として、レーザー加工や生命科学・医療分野などへの広い応用が拓ける。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report

Research Products

(61 results)

All 2021 2020 2019 2018

All Journal Article (32 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 25 results,  Open Access: 3 results) Presentation (29 results) (of which Invited: 3 results)

  • [Journal Article] Direct generation of sub-picosecond pulse via multi-section gain switching2021

    • Author(s)
      Nakamura Takahiro、Ito Takashi、Nakamae Hidekazu、Kim Changsu、Hazama Yuji、Kobayashi Yohei、Kuroda Ryunosuke、Akiyama Hidefumi
    • Journal Title

      Optics Letters

      Volume: 46 Pages: 1277-1277

    • DOI

      10.1364/ol.409822

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabricating over 7%-efficient Sb2(S,Se)3 thin-film solar cells by vapor transport deposition using Sb2Se3 and Sb2S3 mixed powders as the evaporation source2021

    • Author(s)
      Hu Xiaobo、Tao Jiahua、Wang Rui、Wang Youyang、Pan Yanlin、Weng Guoen、Luo Xianjia、Chen Shaoqiang、Zhu Ziqiang、Chu Junhao、Akiyama Hidefumi
    • Journal Title

      Journal of Power Sources

      Volume: 493 Pages: 229737-229737

    • DOI

      10.1016/j.jpowsour.2021.229737

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superior single-mode lasing in a self-assembly CsPbX3 microcavity over an ultrawide pumping wavelength range2021

    • Author(s)
      Weng Guoen、Yan Jiyu、Chen Shengjie、Zhao Chunhu、Zhang Hanbing、Tian Jiao、Liu Yuejun、Hu Xiaobo、Tao Jiahua、Chen Shaoqiang、Zhu Ziqiang、Akiyama Hidefumi、Chu Junhao
    • Journal Title

      Photonics Research

      Volume: 9 Pages: 54-54

    • DOI

      10.1364/prj.409884

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electron-Hole Plasma Lasing Dynamics in CsPbClmBr3-m Microplate Lasers2021

    • Author(s)
      Weng Guoen、Tian Jiao、Chen Shengjie、Yan Jiyu、Zhang Hanbing、Liu Yuejun、Zhao Chunhu、Hu Xiaobo、Luo Xianjia、Tao Jiahua、Chen Shaoqiang、Zhu Ziqiang、Chu Junhao、Akiyama Hidefumi
    • Journal Title

      ACS Photonics

      Volume: 8 Pages: 787-797

    • DOI

      10.1021/acsphotonics.0c01512

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adaptive automatic solar cell defect detection and classification based on absolute electroluminescence imaging2021

    • Author(s)
      Wang Youyang、Li Liying、Sun Yifan、Xu Jinjia、Jia Yun、Hong Jianyu、Hu Xiaobo、Weng Guoen、Luo Xianjia、Chen Shaoqiang、Zhu Ziqiang、Chu Junhao、Akiyama Hidefumi
    • Journal Title

      Energy

      Volume: 229 Pages: 120606-120606

    • DOI

      10.1016/j.energy.2021.120606

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced Magneto-Optical Kerr Effect of GaAs-Based P-N Junctions in the Terahertz Range2021

    • Author(s)
      Miyagawa Keita、Nagai Masaya、Ashida Masaaki、Kim Changsu、Akiyama Hidefumi
    • Journal Title

      Journal of Infrared, Millimeter, and Terahertz Waves

      Volume: 42 Pages: 325-337

    • DOI

      10.1007/s10762-021-00779-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High performance single-mode vertical cavity surface emitting lasers based on CsPbBr3 nanocrystals with simplified processing2021

    • Author(s)
      Zhao Chunhu、Tao Jiahua、Tian Jiao、Weng Guoen、Liu Huimin、Liu Yuejun、Yan Jiyu、Chen Shengjie、Pan Yanlin、Hu Xiaobo、Chen Shaoqiang、Akiyama Hidefumi、Chu Junhao
    • Journal Title

      Chemical Engineering Journal

      Volume: - Pages: 127660-127660

    • DOI

      10.1016/j.cej.2020.127660

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ wavelength tuning of quantum-dot single-photon sources integrated on a CMOS-processed silicon waveguide2020

    • Author(s)
      R. Katsumi, Y. Ota, A. Osada, T. Tajiri, T. Yamaguchi, M. Kakuda, S. Iwamoto, H. Akiyama, and Y. Arakawa
    • Journal Title

      Appl. Phys. Lett.

      Volume: 116 Pages: 041103-041103

    • DOI

      10.1063/1.5129325

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantum-mechanical hydration plays critical role in the stability of firefly oxyluciferin isomers: State-of-the-art calculations of the excited states2020

    • Author(s)
      Yoshifumi Noguchi, Miyabi Hiyama, Motoyuki Shiga, Hidefumi Akiyama, and Osamu Sugino
    • Journal Title

      Journal of Chemical Physics

      Volume: 153 Pages: 201103-201103

    • DOI

      10.1063/5.0031356

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Exciton Localization and Enhancement of the Exciton-LO Phonon Interaction in a CsPbBr3 Single Crystal2020

    • Author(s)
      Shibata Keisei、Yan Jiyu、Hazama Yuji、Chen Shaoqiang、Akiyama Hidefumi
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 124 Pages: 18257-18263

    • DOI

      10.1021/acs.jpcc.0c06254

    • NAID

      130008155336

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Theoretical Study of the Wavelength Selection for the Photocleavage of Coumarin‐caged D‐luciferin2020

    • Author(s)
      Usukura Junko、Hiyama Miyabi、Kurata Maki、Hazama Yuji、Qiu Xing‐Ping、Winnik Francoise M.、Akiyama Hidefumi、Koga Nobuaki
    • Journal Title

      Photochemistry and Photobiology

      Volume: - Pages: 805-814

    • DOI

      10.1111/php.13212

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantitative immunohistochemistry using an antibody-fused bioluminescent protein2020

    • Author(s)
      Wang Ke-Yong、Wu Chun、Shimajiri Shohei、Enomoto Toshiteru、Kubota Hidehiro、Akiyama Hidefumi、Ohmiya Yoshihiro
    • Journal Title

      BioTechniques

      Volume: 69 Pages: 302-306

    • DOI

      10.2144/btn-2020-0006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lasing operation in the CsPbBr3 perovskite micron hemisphere cavity grown by chemical vapor deposition2020

    • Author(s)
      Zhang Hanbing、Zhao Chunhu、Chen Shengjie、Tian Jiao、Yan Jiyu、Weng Guoen、Hu Xiaobo、Tao Jiahua、Pan Yanlin、Chen Shaoqiang、Akiyama Hidefumi、Chu Junhao
    • Journal Title

      Chemical Engineering Journal

      Volume: 389 Pages: 124395-124395

    • DOI

      10.1016/j.cej.2020.124395

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Absolute electroluminescence imaging with distributed circuit modeling: Excellent for solar‐cell defect diagnosis2020

    • Author(s)
      Hong Jianyu、Wang Youyang、Chen Yuanjing、Hu Xiaobo、Weng Guoen、Chen Shaoqiang、Akiyama Hidefumi、Zhang Yingbin、Zhang Bo、Chu Junhao
    • Journal Title

      Progress in Photovoltaics: Research and Applications

      Volume: 28 Pages: 295-306

    • DOI

      10.1002/pip.3236

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Modeling and design for low‐cost multijunction solar cell via light‐trapping rear texture technique: Applied in InGaP/GaAs/InGaAs triple junction2020

    • Author(s)
      Zhu Lin、Hazama Yuji、Reddy Anurag、Watanabe Kentaroh、Nakano Yoshiaki、Sugiyama Masakazu、Akiyama Hidefumi
    • Journal Title

      Progress in Photovoltaics: Research and Applications

      Volume: 28 Pages: 251-265

    • DOI

      10.1002/pip.3217

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Practical target values of Shockley-Read-Hall recombination rates in state‐of‐the‐art triple‐junction solar cells for realizing conversion efficiencies within 1% of the internal radiative limit2020

    • Author(s)
      Nakamura Tetsuya、Imaizumi Mitsuru、Akiyama Hidefumi、Okada Yoshitaka
    • Journal Title

      Progress in Photovoltaics: Research and Applications

      Volume: 28 Pages: 417-424

    • DOI

      10.1002/pip.3251

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative study of electron tunneling dynamics in asymmetric coupled InGaN/GaN quantum wells2020

    • Author(s)
      Weng Guoen、Liu Yuejun、Chen Shaoqiang、Ito Takashi、Hu Xiaobo、Zhao Chunhu、Liu Jianping、Chu Junhao、Akiyama Hidefumi
    • Journal Title

      Applied Optics

      Volume: 59 Pages: 6231-6231

    • DOI

      10.1364/ao.396999

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Importance of Interfacial Passivation in the High Efficiency of Sb2Se3 Thin-Film Solar Cells: Numerical Evidence2020

    • Author(s)
      Chen Yuanjing、Wang Youyang、Wang Rui、Hu Xiaobo、Tao Jiahua、Weng Guo-En、Zhao Chunhu、Chen Shaoqiang、Zhu Ziqiang、Chu Junhao、Akiyama Hidefumi
    • Journal Title

      ACS Applied Energy Materials

      Volume: 3 Pages: 10415-10422

    • DOI

      10.1021/acsaem.0c01203

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Light-Driven Electron-Hole Bardeen-Cooper-Schrieffer-Like State in Bulk GaAs2019

    • Author(s)
      Y. Murotani, C. Kim, H. Akiyama, L. Pfeiffer, K. West and R. Shimano
    • Journal Title

      Physical Review Letters

      Volume: 123 Pages: 197401-197401

    • DOI

      10.1103/physrevlett.123.197401

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantum-dot single-photon source on a CMOS silicon photonic chip integrated using transfer printing2019

    • Author(s)
      R. Katsumi, Y. Ota, A. Osada, T. Yamaguchi, T. Tajiri, M. Kakuda, S. Iwamoto, H. Akiyama and Y. Arakawa
    • Journal Title

      APL Photonics

      Volume: 4 Pages: 036105-036105

    • DOI

      10.1063/1.5087263

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multiwavelength GaN‐Based Surface‐Emitting Lasers and Their Design Principles2019

    • Author(s)
      G. Weng, S. Chen, Y. Mei, Y. Liu, H. Akiyama, X. Hu, J. Liu, B. Zhang and J. Chu
    • Journal Title

      ANNALEN DER PHYSIK

      Volume: 532 Pages: 1900308-1900308

    • DOI

      10.1002/andp.201900308

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis for Non-radiative Recombination in Quantum Dot Solar Cells and Materials2019

    • Author(s)
      Lin Zhu, Kan-Hua Lee, Masafumi Yamaguchi, Hidefumi Akiyama, Yoshihiko Kanemitsu, Kenji Araki, and Nobuaki Kojima
    • Journal Title

      Progress in Photovoltaics: Research and Applications

      Volume: - Pages: 1-7

    • DOI

      10.1002/pip.3110

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Nonlinear propagation effects in high harmonic generation in reflection and transmission from gallium arsenide2018

    • Author(s)
      Xia Peiyu, Kim Changsu, Lu Faming, Kanai Teruto, Akiyama Hidefumi, Itatani Jiro, Ishii Nobuhisa
    • Journal Title

      Optics Express

      Volume: 26 Pages: 29393-29393

    • DOI

      10.1364/oe.26.029393

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis and quantitative characterization of coumarin-caged D-luciferin2018

    • Author(s)
      Kurata Maki、Hiyama Miyabi、Narimatsu Takuma、Hazama Yuji、Ito Takashi、Hayamizu Yuhei、Qiu Xingping、Winnik Francoise M.、Akiyama Hidehumi
    • Journal Title

      Journal of Photochemistry and Photobiology B

      Volume: 189 Pages: 81-86

    • DOI

      10.1016/j.jphotobiol.2018.10.002

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantitative monitoring of the internal field in the depletion layer of a GaAs-based solar cell with terahertz radiation2018

    • Author(s)
      Keita Miyagawa, Masaya Nagai, Genki Yamashita, Masaaki Ashida, Changsu Kim, Hidefumi Akiyama, and Yoshihiko Kanemitsu
    • Journal Title

      Appl. Phys. Lett

      Volume: 113 Pages: 163501-163501

    • DOI

      10.1063/1.5037952

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Nonequilibrium Theory on the Conversion Efficiency limit of Solar Cells including Thermalization and Extraction of Carriers2018

    • Author(s)
      Kenji Kamide, Toshimitsu Mochizuki, Hidefumi Akiyama, and Hidetaka Takato
    • Journal Title

      Phys. Rev. Applied

      Volume: 10 Pages: 044069-044069

    • DOI

      10.1103/physrevapplied.10.044069

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Revealing Solar-Cell Photovoltage Dynamics at the Picosecond Time Scale with Time-Resolved Photoemission Spectroscopy2018

    • Author(s)
      Y. Hazama, Y. Ishida, L. Zhu, C. Kim, S. Shin, H. Akiyama
    • Journal Title

      Phys. Rev. Applied

      Volume: 10 Pages: 034056-034056

    • DOI

      10.1103/physrevapplied.10.034056

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intrinsic and extrinsic drops in open-circuit voltage and conversion efficiency in solar cells with quantum dots embedded in host materials2018

    • Author(s)
      L. Zhu, H. Akiyama and Y. Kanemitsu
    • Journal Title

      Scientific Report

      Volume: 8 Pages: 11704-11704

    • DOI

      10.1038/s41598-018-30208-z

    • NAID

      120006517904

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Femtosecond pulse generation beyond photon lifetime limit in gain-switched semiconductor lasers2018

    • Author(s)
      Takashi Ito, Hidekazu Nakamae, Yuji Hazama, Takahiro Nakamura, Shaoqiang Chen, Masahiro Yoshita, Changsu Kim, Yohei Kobayashi, and Hidefumi Akiyama
    • Journal Title

      Communications Physics

      Volume: 4 Pages: 42-42

    • DOI

      10.1038/s42005-018-0045-0

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Coherent detection of THz-induced sideband emission from excitons in the nonperturbative regime2018

    • Author(s)
      K. Uchida, T. Otobe, T. Mochizuki, C. Kim, M. Yoshita, K. Tanaka, H. Akiyama, L. N. Pfeiffer, K. W. West, and H. Hirori
    • Journal Title

      Phys. Rev. B

      Volume: 97 Pages: 165122-165122

    • DOI

      10.1103/physrevb.97.165122

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Absolute bioluminescence imaging at the single-cell on an atto-Watt level2018

    • Author(s)
      Toshiteru Enomoto, Hidehiro Kubota, Kaneo Mori, Masahiro Shimogawara, Masahiro Yoshita, and Hidefumi Akiyama
    • Journal Title

      BioTechniques

      Volume: 64 Pages: 270-274

    • DOI

      10.2144/btn-2018-0043

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Effect of interaction between the internal cavity and external cavity on beam properties in a spectrally beam combined system2018

    • Author(s)
      Zhen Wu, Takashi Ito, Hidefumi Akiyama, and Bin Zhang
    • Journal Title

      Journal of the Optical Society of America A

      Volume: 35 Pages: 772-778

    • DOI

      10.1364/josaa.35.000772

    • Related Report
      2018 Annual Research Report
  • [Presentation] 絶対EL計測に基づく太陽電池の内部損失評価と設計2021

    • Author(s)
      秋山 英文
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ヘテロ接合太陽電池における狭ギャップベース層のEL強度と広ギャップエミッタ層不純物濃度の相関2021

    • Author(s)
      中村 徹哉、今泉 充、ヤンワチラークン ワラーコン、杉山 正和、秋山 英文、岡田 至崇
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ファイバーピグテール付きSi導波路上への量子ドット-ナノ共振器結合系の転写プリント集積2021

    • Author(s)
      勝見 亮太、太田 泰友、田尻 武義、岩本 敏、秋山 英文、Reithmaier J. P.、Benyoucef M.、荒川 泰彦
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 量子細線から短パルス利得スイッチ半導体レーザーへ―内在する多体効果と光非線形性―2021

    • Author(s)
      秋山英文
    • Organizer
      レーザー学会第41回年次大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 超高速利得スイッチ半導体レーザー2020

    • Author(s)
      秋山英文
    • Organizer
      Photonic Device Workshop
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] GaAsを用いた非摂動論的な高次高調波発生の特性2020

    • Author(s)
      玉谷知裕, 夏沛宇, Faming Lu, 金井輝人, 石井順久, 板谷治郎, 金昌秀, 秋山英文, 加藤岳生
    • Organizer
      日本物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 第一原理MD計算による水溶液中のオキシルシフェリン異性体の安定性機構の解明2020

    • Author(s)
      野口良史, 樋山みやび, 志賀基之, 秋山英文, 杉野修
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 円偏光THzパルスを用いたGaAsエピ膜の磁気光学Kerr分光2020

    • Author(s)
      宮川 敬太、永井 正也、芦田 昌明、金 昌秀、秋山 英文
    • Organizer
      第81回 応用物理学会 秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 転写プリント法による通信波長帯量子ドット単一光子源のSi導波路上集積2020

    • Author(s)
      勝見 亮太、太田 泰友、田尻 武義、岩本 敏、秋山 英文、Reithmaier J. P.、Benyoucef M.、荒川 泰彦
    • Organizer
      第81回 応用物理学会 秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 超高速利得スイッチ半導体レーザー2020

    • Author(s)
      秋山 英文
    • Organizer
      2020年電子情報通信学会 総合大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 時間分解分 光法を利用した太陽電池デバイス活性層での少数キャリア輸送および再結合特性 の評価2019

    • Author(s)
      挾間優治, 石田行章, 黒田健太, 朱琳, 金昌秀, 辛埴, 秋山英文
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] MAPbI3における温度効 果を取り入れた励起子光吸収スペクトルの理論計算2019

    • Author(s)
      山本拓, 西田寛太郎, 鈴浦秀勝, 秋山英文, 金光義彦
    • Organizer
      日本物理学会第74回年次 大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 希薄磁性半導体超格子GaGdAs:Si/GaAsの PL測定によるフェルミ面位置の推定 と磁気特性2019

    • Author(s)
      高藤 誠、加藤 昇、船曳 晃弘、吉田 萌、宮川 勇人、狭間 優治、秋山 英文
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] シリコン光回路上に集積された複数量 子ドット光源の局所発光波長制御2019

    • Author(s)
      勝見 亮太、太田 泰友、長田 有登、山口 拓人、田尻 武義、車 一宏、角田 雅 弘、岩本 敏、秋山 英文、荒川 泰彦
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Monitoring minority-carrier transport and recombination in photovoltaic devices in real time2019

    • Author(s)
      Y. Hazama, Y. Ishida, L. Zhu, C. Kim, S. Shin, and H. Akiyama
    • Organizer
      SPIE Photonics West
    • Related Report
      2018 Annual Research Report
  • [Presentation] A concept of nonequilibrium solar cell "heat recovery solar cell2019

    • Author(s)
      Kenji Kamide, Toshimitsu Mochizuki, Hidefumi Akiyama, and Hidetaka Takato
    • Organizer
      SPIE Photonics West
    • Related Report
      2018 Annual Research Report
  • [Presentation] 熱回収型太陽電池の温度特性 と熱起電力効果2018

    • Author(s)
      上出 健仁、望月 敏光、秋山 英文、高遠 秀尚
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 反射配置でのGaAsからの高次高調波発生と伝搬効果の評価2018

    • Author(s)
      夏 沛宇、金 昌秀、Faming Lu、石井 順久、金井 輝人、秋山 英文、板谷 治 郎
    • Organizer
      第79 回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 二波長励起PL測定によるGaPN混晶のアップコンバージョン発光特性評価2018

    • Author(s)
      高橋 渉、高宮 健吾、八木 修平、狭間 優治、秋山 英文、矢口 裕之、鎌田 憲 彦、
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 転写プリント法によるシリコン導波路 上への量子ドット単一光子源の集積2018

    • Author(s)
      勝見 亮太、太田 泰友、長田 有登、田尻 武義、車 一宏、山口 拓人、角田 雅 弘、岩本 敏、秋山 英文、荒川 泰彦
    • Organizer
      第79回応用物理学会秋季学術講演 会
    • Related Report
      2018 Annual Research Report
  • [Presentation] バルクGaAsにおける励起子の近赤外光 ドレスト状態の観測2018

    • Author(s)
      室谷悠太, 金昌秀, 秋山英文, 島野亮
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] バルクGaAsにおける重い正 孔-軽い正孔混合励起子分子の誘導吸収の観測2018

    • Author(s)
      高山正行, 室谷悠太, 金昌秀, 秋山英文, 島野亮
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ハロゲン化鉛ペロブス カイト半導体における励起子束縛状態の光吸収スペクトルについての理論的考 察2018

    • Author(s)
      山本拓, 西田寛太郎, 鈴浦秀勝, 秋山英文, 金光義彦
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 水溶液中のクマリン・ケージドルシフェリンの 吸収スペクトルの理論的研究2018

    • Author(s)
      薄倉淳子, 樋山みやび, 倉田麻貴, 挾間優治, Xingping Qiu, Francoise Winnik, 古賀伸明, 秋山英文
    • Organizer
      第12回分子科学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Experimental analysis of open-circuit voltage drop in quantum-dot solar cells via absolute electroluminescence measurement2018

    • Author(s)
      Lin Zhu, Yuji Hazama, Changsu Kim, Michael Slocum, Zachary Bittner, Seth Hubbard, Hidefumi Akiyama
    • Organizer
      7th World Conference on Photovoltaic Energy Conversion
    • Related Report
      2018 Annual Research Report
  • [Presentation] A solar cell enabling heat recovery without fast carrier extraction2018

    • Author(s)
      Kenji Kamide, Toshimitsu Mochizuki, Hidefumi Akiyama2, and Hidetaka Takato
    • Organizer
      7th World Conference on Photovoltaic Energy Conversion
    • Related Report
      2018 Annual Research Report
  • [Presentation] Contactless measurement of pico-to-nanosecond dynamics of photovoltage: its utility and constraint2018

    • Author(s)
      Y. Hazama, Y. Ishida, L. Zhu, C. Kim, S. Shin, and H. Akiyama
    • Organizer
      7th World Conference on Photovoltaic Energy Conversion
    • Related Report
      2018 Annual Research Report
  • [Presentation] Radiation Evaluation from the Carrier Life Time and Structure Studied of Perovskite Solar Cells for Space Application2018

    • Author(s)
      Shusaku Kanaya, Dayna Erdmann, Gyu Min Kim, Masashi Ikegami, Youhei Numata, Tsutomu Miyasaka, Yuji Hazama, Hidefumi Akiyama, Kohtaku Suzuki, Kanta Osonoe, Tomoyuki Yamamoto, Yu Miyazawa*1, Hiroyuki Toyota, and Kazuyuki Hirose
    • Organizer
      7th World Conference on Photovoltaic Energy Conversion
    • Related Report
      2018 Annual Research Report
  • [Presentation] Quantitative loss analysis of voltage output characteristics on multi-junction solar cells2018

    • Author(s)
      Tetsuya Nakamura, Lin Zhu, Masahiro Yoshita, Mitsuru Imaizumi, Hidefumi Akiyama, Yoshitaka Okada
    • Organizer
      7th World Conference on Photovoltaic Energy Conversion
    • Related Report
      2018 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi