Fundamental physics of ultra-short-pulse generation in clean quantum-structure semiconductor lasers
Project/Area Number |
15H03968
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Electronic materials/Electric materials
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Research Institution | The University of Tokyo |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
挾間 優治 東京大学, 物性研究所, 助教 (80759150)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2015: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
|
Keywords | 半導体レーザー / 利得スイッチ / 超放射 / 光物性 / 半導体物性 / 非線形性 / 非線型性 |
Outline of Final Research Achievements |
We fabricated high-quality GaAs multi-quantum-well and double-hetero-structure semiconductor lasers, made strong impulsive optical pumping by using mode-locked Ti sapphire lasers and mode-locked fiber lasers. Pulse dynamics of their output short pulse was measured via a streak camera, photo-diodes, and an auto-correlator. We obtained fs pulses in the short wavelength part of the output pulses under extremely high pumping, found the importance of gain amplitude instead of quantum confinement, and successfully formulated them with our 2-band-semiconductor rate-equation laser theory. a
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Report
(4 results)
Research Products
(87 results)
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[Journal Article] icosecond tunable gain-switched blue pulses from GaN laser diodes with nanosecond current injections2017
Author(s)
Shaoqiang Chen, Takahiro Nakamura, Takashi Ito, Hidekazu Nakamae, Xumin Bao, Guoen Weng, Xiaobo Hu, Masahiro Yoshita, Hidefumi Akiyama, Jianping,Liu, Masao Ikeda, and Hui Yang
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Journal Title
Optics
Volume: 25
Pages: 13046-13054
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[Journal Article] Transient gain analysis of gain-switched semiconductor lasers during pulse lasing2015
Author(s)
Shao-Qian Chen, Takashi Ito, Akifumi Asahara, Hidekazu Nakamae, Takahiro Nakamura, Masahiro Yoshita, Changsu Kim, Baoping Zhang, Hiroyuki Yokoyama, Tohru Suemoto, and Hidefumi Akiyama
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Journal Title
Applied Optics
Volume: 54
Issue: 35
Pages: 10438-10442
DOI
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Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Time-resolved observation of coherent excitonic nonlinear response with a table-top narrowband THz pulse wave2015
Author(s)
K. Uchida, H. Hirori, T. Aoki, C. Wolpert, T. Tamaya, K. Tanaka, T. Mochizuki, C. Kim, M. Yoshita, H. Akiyama, L. N. Pfeiffer and K. W. West
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Journal Title
Appl. Phys. Lett.
Volume: 107
Issue: 22
Pages: 221106-221106
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] 半導体反転分布状態に対する位相緩和測定2017
Author(s)
中前秀一, 伊藤隆, 中村孝宏, 金昌秀, 挾間優治, 黒田隆之助, 秋山英文
Organizer
日本物理学会第72回年次大会
Place of Presentation
大阪府豊中市 大阪大学 豊中キャンパス
Year and Date
2017-03-17
Related Report
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[Presentation] 利得スイッチ半導体レーザーの短パルス発生限界2017
Author(s)
伊藤隆, 中前秀一, 挾間優治, 中村考宏, 金昌秀, 小林洋平, 吉田正裕, 秋山英文
Organizer
レーザー学会第37回年次大会
Place of Presentation
徳島県徳島市 徳島大学常三島キャンパス
Year and Date
2017-01-07
Related Report
Invited
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[Presentation] 多色性で見る5d軌道2016
Author(s)
平井大悟郎, 矢島健, 金昌秀, 秋山英文, 広井善二
Organizer
日本物理学会2016年秋季大会
Place of Presentation
石川県金沢市 金沢大学角間キャンパス
Year and Date
2016-09-13
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[Presentation] GaAs量子井戸中励起子からのTHzサイドバンド生成2016
Author(s)
内田健人, 廣理英基, 乙部智仁, 田中耕一郎, 望月敏光, 金昌秀, 吉田正裕, 秋山英文, L. N. Pfeiffer, K. W. West
Organizer
日本物理学会 第71回年次大会
Place of Presentation
宮城県 仙台市 東北学院大学泉キャンパス
Year and Date
2016-03-19
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[Presentation] Voc Evaluation of Solar Cells and Modules Using Absolute El Images2015
Author(s)
T. Mochizuki, J. Mitchell, H. Takato, C. Kim, Z. Lin, M. Yoshita, H. Akiyama, S. Chen, and Y. Kanemitsu
Organizer
European PV Solar Energy Conference
Place of Presentation
CCH - Congress Center Hamburg, Hamburg, Germany
Year and Date
2015-09-14
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[Presentation] 量子井戸キャリア密度の空間的な揺らぎの定量測定2015
Author(s)
中前秀一, 中村考宏, 伊藤隆, 望月敏光, 金昌秀, 吉田正裕, 秋山英文, Loren N. Pfeiffer, Ken W. West
Organizer
物性研究所短期研究会 機能物性融合科学研究会シリーズ(3)「反応と輸送」
Place of Presentation
千葉県 柏市 東京大学物性研究所
Year and Date
2015-06-24
Related Report
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[Presentation] Absolute Electroluminescence Imaging of Multi-Junction Solar Cells and Calibration Standards2015
Author(s)
Masahiro Yoshita, Lin Zhu, Changsu Kim, Hidefumi Akiyama, Shaoqiang Chen, Toshimitsu Mochizuki, Hidehiro Kubota, Tetsuya Nakamura, Mitsuru Imaizumi, Yoshihiko Kanemitsu
Organizer
The 42nd IEEE Photovoltaic Specialists Conference
Place of Presentation
the Hyatt Regency New Orleans, New Orleans, LA, USA
Year and Date
2015-06-14
Related Report
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[Presentation] Characterizations of radiation damages in multi-junction solar cells focused on subcell internal luminescence quantum yields via absolute electroluminescence measurements2015
Author(s)
Lin Zhu, Masahiro Yoshita, Shaoqiang Chen, Tetsuya Nakamura, Toshimitsu Mochizuki, Changsu Kim, Mitsuru Imaizumi, Yoshihiko Kanemitsu, Hidefumi Akiyama
Organizer
he 42nd IEEE Photovoltaic Specialists Conference
Place of Presentation
the Hyatt Regency New Orleans, New Orleans, LA, USA
Year and Date
2015-06-14
Related Report
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[Presentation] Current leakage and fill factor in multi-junction solar cells linked via absolute electroluminescence characterization2015
Author(s)
Lin Zhu, Masahiro Yoshita, Tetsuya Nakamura, Toshimitsu Mochizuki, Changsu Kim, Mitsuru Imaizumi, Yoshihiko Kanemitsu, Hidefumi Akiyama
Organizer
The 43rd IEEE Photovoltaic Specialists Conference (PVSC-43)
Place of Presentation
the Oregon Convention Center, Portland, Oregon, USA
Year and Date
2015-06-05
Related Report
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[Presentation] Accuracy Evaluations for Standardization of Multi-Junction Solar-Cell Characterizations via Absolute Electroluminescence2015
Author(s)
Masahiro Yoshita, Lin Zhu, Changsu Kim, Hidehiro Kubota, Tetsuya Nakamura, Mitsuru Imaizumi, Yoshihiko Kanemitsu, and Hidefumi Akiyama
Organizer
The 43rd IEEE Photovoltaic Specialists Conference (PVSC-43)
Place of Presentation
the Oregon Convention Center, Portland, Oregon, USA
Year and Date
2015-06-05
Related Report