Rchr
J-GLOBAL ID：201801011857454456
Update date: Aug. 30, 2024
Akiyama Hidefumi
アキヤマ ヒデフミ | Akiyama Hidefumi
Research field (1)：
Semiconductors, optical and atomic physics
Research theme for competitive and other funds (38)：
- 2024 - 2027 電流注入レーザーの極端非線形利得スイッチによる光子寿命限界を破る短パルス発生
- 2021 - 2024 半導体超格子の室温テラヘルツ利得における動的電子相関の解明と制御
- 2021 - 2024 電流注入利得スイッチレーザー活性層の限界駆動高速非線形性とその電気的制御
- 2019 - 2022 Development of High Efficiency Photovoltaic Cells Using Electron Localized States in Dilute Nitride Semiconductors
- 2019 - 2022 Control of Weyl magnets by intense monocycle terahertz magnetic field
- 2018 - 2021 Study on the crossover from semiconductor gain-switched lasers to superradiance and the limit of short-pulse generation
- 2015 - 2018 Fundamental physics of ultra-short-pulse generation in clean quantum-structure semiconductor lasers
- 2014 - 2017 Study on optical short-pulse generation from intensely excited gain-switched semiconductor lasers
- 2014 - 2016 高品質半導体ナノ構造光デバイスの「ものづくり」と基礎物理研究
- 2014 - 2016 Quantitative measurements and controlled designs of firefly bioluminescence with genetic bio-technology
- 2012 - 2015 Generation and control of quantum correlated photons from atomic-layer doped semiconductors
- 2011 - 2014 Development of practical theoretical calculation of semiconductor-laser gain including many-body Coulomb interactions and its experimental verifications with high-quality quantum-wire lasers
- 2008 - 2014 Optical Science of Dynamically Correlated Electrons
- 2011 - 2013 Formation of atomically flat GaAs(110) surfaces and step-edge dynamics of surface adatoms
- 2010 - 2012 利得スイッチングによる半導体量子構造レーザからの短光パルス発生
- 2008 - 2012 Low-threshold optical gain and high-speed optical nonlinearity in low-dimensional semiconductor lasers
- 2009 - 2011 Single Photon Generation from locally doped semiconductors
- 2009 - 2011 クリーン量子井戸及び量子細線半導体レーザーにおける次元性とキャリア間相互作用
- 2008 - 2010 Fabrication of low-threshold quantum-wire lasers and study on their lasing properties and physics
- 2008 - 2009 生物発光スペクトル絶対定量分光計測とホタル発光色決定機構
- 2005 - 2007 Control of electrons and holes by quantum rings and related nanostructures and its device applications
- 2004 - 2005 Current-injection operation of quantum-wire lasers and verification of low threshold currents
- 2002 - 2004 超平坦ガリウム砒素MBEへき開再成長アニール表面の制御と理想2次元励起子系の顕微分光計測
- 2002 - 2004 超平坦ガリウム砒素MBEへき開再成長アニール表面の制御と理想2次元励起子系の顕微分光計測
- 2003 - 2003 量子構造制御による冷たい高密度光励起とスピン機能性の開拓
- 2002 - 2003 Lasing mechanisms in high-quality T-shaped quantum-wire lasers
- 2000 - 2001 Time resolution fluorescence spectroscopy of nano-crystalline blue luminescence materials by variable repetition ultravilolet sub-pico second laser
- 1998 - 2001 Development of device structures with simultaneous optical and electronic confinement and microscopic transmission measurements on their lasing, absorption, and gain characteristics
- 1999 - 1999 半導体リッジ型ナノ構造における近接場光の分布と光学遷移
- 1997 - 1999 Room-temperature device application of one- dimensional-exciton photo-emission in quantum wires
- 1998 - 1998 ソリッドイマージョン蛍光顕微画像計測法
- 1998 - 1998 半導体リッジ型ナノ構造における近接場光の分布と光学遷移
- 1997 - 1997 半導体リッジ型ナノ構造における近接場光の分布と光学遷移
- 1995 - 1997 Infrared-detector and FET applications and velocity modulation effect using hetero-coupling
- 1994 - 1997 Quantum Manipulation of Reseaech Field and Material Field in Many-body Systems
- 1994 - 1997 Quantum Manipulation of Readiation Field in Semiconductor Microstructures
- 1995 - 1996 Control of nano-scale quantum wire structures and optocal properties of one-dimensional excitons
- 1994 - 1994 半導体量子井戸構造における励起子の輸送制御と輻射場との相互作用
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Papers (274)：
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Masataka Kobayashi, Takahiro Nakamura, Hidekazu Nakamae, Changsu Kim, Hidefumi Akiyama. Gain-switched pulse generation of 5.3 ps from 30 GHz-modulation-bandwidth 1270 nm DFB laser diode: erratum. Optics Letters. 2024. 49. 16. 4753-4753
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Tomohiro Fujimoto, Takayuki Kurihara, Yuta Murotani, Tomohiro Tamaya, Natsuki Kanda, Changsu Kim, Jun Yoshinobu, Hidefumi Akiyama, Takeo Kato, Ryusuke Matsunaga. Observation of Terahertz Spin Hall Conductivity Spectrum in GaAs with Optical Spin Injection. Physical Review Letters. 2024. 132. 1
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Masataka Kobayashi, Takahiro Nakamura, Hidekazu Nakamae, Changsu Kim, Hidefumi Akiyama. Gain-switched pulse generation of 5.3 ps from 30 GHz-modulation-bandwidth 1270 nm DFB laser diode. Optics letters. 2023. 48. 23. 6344-6347
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Tomohiro Tamaya, Hidefumi Akiyama, Takeo Kato. Shear-strain controlled high-harmonic generation in graphene. Physical Review B. 2023. 107. 8
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Ryo Kumagai, Ryohei Ono, Shu Sakimoto, Chiharu Suzuki, Ken-ichiro Kanno, Hiroshi Aoyama, Junko Usukura, Masataka Kobayashi, Hidefumi Akiyama, Hideyuki Itabashi, et al. Photo-cleaving and photo-bleaching quantum yields of coumarin-caged luciferin. Journal of Photochemistry and Photobiology A: Chemistry. 2023. 434. 114230-114230
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MISC (225)：
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矢野裕子, 高宮健吾, 藤川沙千恵, 八木修平, 矢口裕之, 小林真隆, 秋山英文. Study on the Binding Energy of Biexcitons Localized at Isoelectronic Traps in Nitrogen δ-Doped GaAs. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2023. 70th
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小林真隆, 中村考宏, CAO F., 中前秀一, KIM C., CHEN S., 秋山英文. 5.3 ps Gain-Switched Pulse Generation by 30 GHz DFB Semiconductor Laser. 日本物理学会講演概要集(CD-ROM). 2023. 78. 2
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熊谷遼, 小野稜平, 小野稜平, 菅野研一郎, 青山洋史, 薄倉淳子, 小林真隆, 秋山英文, 板橋英之, 板橋英之, et al. Photo-cleaving process of coumarin-caged luciferin. 分子科学討論会講演プログラム&要旨(Web). 2023. 17th
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今西勇輔, 今西勇輔, 小野稜平, 小野稜平, 中野智哉, 中野智哉, 松永大輝, 松永大輝, 小林真隆, 秋山英文, et al. Study of photo cleavage of coumarin-caged luciferin using UV laser and LED light. 分子科学討論会講演プログラム&要旨(Web). 2023. 17th
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松永大輝, 松永大輝, 小野稜平, 小野稜平, 小林真隆, 秋山英文, 板橋英之, 板橋英之, 樋山みやび, 樋山みやび, et al. Study for photo-breaching condition of D-luciferin using UV laser and LED light. 分子科学討論会講演プログラム&要旨(Web). 2023. 17th
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