YOKOYAMA Hiroyuki 横山弘之

… Alternative Names

横山弘之ヨコヤマヒロユキ

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Researcher Number	60344727
Other IDs
Affiliation (based on the past Project Information) *help	2020 – 2022: 東北大学, 未来科学技術共同研究センター, 教授 2016: 東北大学, 未来科学技術共同研究センター, 教授 2015: 東北大学, 未来科学技術共同研究センタ－, 教授 2014: 東北大学, 未来科学技術共同研究センター, 教授 2012: 東北大学, 学内共同利用施設等, 教授 2008 – 2012: 東北大学, 未来科学技術共同研究センター, 教授 2004: 東北大学, 未来科学技術共同研究センター, 教授
Review Section/Research Field	Except Principal Investigator Broad Section D / Applied physics, general / Crystal engineering / Science and Engineering
Keywords	Except Principal Investigator 非線形光学 / 半導体レーザー / 半導体物性 / 生物物理学 / 脳神経科学 / 量子効果 / ボリュームイメージング / 生体リズム / Ca2+シグナル / 神経科学 … More / 高機能レーザー / 応用光学 / 神経生理学 / 光脳科学 / バイオイメージング / ultrafast photonics / semiconductor laser / terahertz molecular vibration / coherent Raman effect / biophotonics / 超高速光制御 / テラヘルツ帯分子振動 / コヒーレントラマン効果 / バイオフォトニクス / パルスレーザー堆積 / 光導波路 / 反応性スパッタリング / パルスレーザ堆積 / 酸化ジルコニウム / 窒化アルミニウム / 第二高調波発生 / MBE、エピタキシャル / ＭＢＥ / 高速非線型 / 量子細線 / MBE / 量子閉じ込め / 高性能レーザー / 光物性・高速非線形 / 半導体 / 量子もつれ / 量子暗号 / 量子通信 / 量子エレクトロニクス / 量子工学 / 光物性 / 量子情報 / 量子光学 Less

Creation of Neurophotonics and Elucidation of Brain Functions
- Principal Investigator
  
  根本知己
- Project Period (FY)
  2020 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section D
- Research Institution
  National Institutes of Natural Sciences
Development of Compact Deep-UV Laser Based on Wavelength Converter Integrated with Blue Laser Light Sources
- Principal Investigator
  
  Katayama Ryuji
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Crystal engineering
- Research Institution
  Osaka University
  Tohoku University
Low-threshold optical gain and high-speed optical nonlinearity in low-dimensional semiconductor lasers
- Principal Investigator
  
  AKIYAMA Hidefumi
- Project Period (FY)
  2008 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  The University of Tokyo
Development of superefficient entangled-photon sources, detectors and entanglement re-covery protocol
- Principal Investigator
  
  EDAMATSU Keiichi
- Project Period (FY)
  2005 – 2009
- Research Category
  
  Grant-in-Aid for Creative Scientific Research
- Research Institution
  Tohoku University
Terahertz biophotonics by use of ultrafast telecommunication devices
- Principal Investigator
  
  SHIKATA Jun-ichi
- Project Period (FY)
  2004 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Applied physics, general
- Research Institution
  Tohoku University

All 2023 2022 2021 2013 2012 2011 2010 2009 2007

All Journal Article Presentation

[Journal Article] All-synchronized picosecond pulses and time-gated detection improve the spatial resolution of two-photon STED microscopy in brain tissue imaging2023
- Author(s)
  Hirokazu Ishii、Kohei Otomo、Ching-Pu Chang、Miwako Yamasaki、Masahiko Watanabe、Hiroyuki Yokoyama、Tomomi Nemoto
- Journal Title
  
  PLOS ONE
  
  Volume: 18(8) Issue: 8 Pages: 7462-7467
- DOI
  10.1371/journal.pone.0290550
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-22K21353, KAKENHI-PROJECT-21K19346, KAKENHI-PROJECT-22H04926, KAKENHI-PROJECT-20H05669, KAKENHI-PROJECT-20H03410, KAKENHI-PROJECT-23K21350, KAKENHI-PROJECT-23K24019
[Journal Article] Dynamics of 2nd quantized state laser oscillation in gain-switched quantum-well semiconductor lasers2023
- Author(s)
  Yokoyama Hiroyuki
- Journal Title
  
  Optics Continuum
  
  Volume: 2 Issue: 1 Pages: 216-216
- DOI
  10.1364/optcon.477013
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H05669
[Journal Article] Gain-switched pulses from InGaAs ridge-quantum-well lasers limited by intrinsic dynamical gain suppression2013
- Author(s)
  Shaoqiang Chen, Masahiro Yoshita, Takashi Ito, Toshimitsu Mochizuki, Hidefumi Akiyama, Hiroyuki Yokoyama
- Journal Title
  
  Optics Express
  
  Volume: 21 Issue: 6 Pages: 7570-7576
- DOI
  10.1364/oe.21.007570
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-10F00374, KAKENHI-PLANNED-20104004, KAKENHI-PROJECT-23360135
[Journal Article] Dynamics of short-pulse generation via spectral filtering from intensely excited gain-switched 1.55-μm distributed-feedback laser diodes2013
- Author(s)
  S. Chen, M. Yoshita, A. Sato, T. Ito, H. Akiyama,and H. Yokoyama
- Journal Title
  
  Optics Express
  
  Volume: 21 Issue: 9 Pages: 10597-10597
- DOI
  10.1364/oe.21.010597
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004, KAKENHI-PROJECT-23360135
[Journal Article] Sub-5-ps optical pulse generation from a 1.55-μm distributed-feedback laser diode with nanosecond electric pulse excitation and spectral filtering2012
- Author(s)
  Shaoqiang Chen, Aya Sato, Takashi Ito, Masahiro Yoshita, Hidefumi Akiyama. Hiroyuki Yokoyama
- Journal Title
  
  Optics Express
  
  Volume: 20 Issue: 22 Pages: 24843-24843
- DOI
  10.1364/oe.20.024843
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-10F00374, KAKENHI-PLANNED-20104004, KAKENHI-PROJECT-23360135
[Journal Article] 300 W peak power picosecond optical pulse generation by blue-violet GaInN mode-locked laser diode and semiconductor optical amplifier2012
- Author(s)
  R. Koda, T. Oki, S. Kono, T. Miyajima, H. Watanabe, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 5 Issue: 2 Pages: 22702-22702
- DOI
  10.1143/apex.5.022702
- NAID
  10030155538
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Analysis of gain-switching characteristics including strong gain saturation effects in low-dimensional semiconductor lasers2012
- Author(s)
  S. Chen, M. Yoshita, T. Ito, T. Mochizuki, H. Akiyama, H. Yokoyama, K. Kamide, and T. Ogawa
- Journal Title
  
  Jpn. J. Appl. Phys
  
  Volume: 51 Pages: 98001-98001
- NAID
  210000072838
- URL
  http://jjap.jsap.jp/link?JJAP/51/098001/
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Direct generation of 20 W peak power picosecond optical pulses from an external-cavity mode-locked GaInN laser diode incorporating a flared waveguide2011
- Author(s)
  T. Oki, R. Koda, S. Kono, T. Miyajima, H. Watanabe, M. Kuramoto, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 99 Issue: 11 Pages: 111105-111105
- DOI
  10.1063/1.3640499
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Lateral resolution enhancement of laser scanning microscopy by a higher-order radially polarized mode beam2011
- Author(s)
  Y. Kozawa, T. Hibi, A. Sato, H. Horanai, M. Kurihara, N. Hashimoto, H. Yokoyama, T. Nemoto, and S. Sato
- Journal Title
  
  Opt. Express
  
  Volume: 19 Pages: 15947-15954
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Saturable absorbing dynamics of GaInN multiquantum well structures2011
- Author(s)
  T. Miyajima, S. Kono, H. Watanabe, T. Oki, R. Koda, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 98 Issue: 17 Pages: 171904-171904
- DOI
  10.1063/1.3583456
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] A high-peak-power UV picosecond light pulse source based on a gain-switched 1.55 μm laser diode and its application for time-resolved spectroscopy of blue-violet materials2010
- Author(s)
  Aya Sato, Shunsuke Kono, Kyosuke Saito, Kiichi Sato, Hiroyuki Yokoyama
- Journal Title
  
  Optics Express 18
  
  Pages: 2522-2527
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Enormously high-peak-power optical pulse generation from a single-transverse-mode GaInN blue-violet laser diode2010
- Author(s)
  M. Kuramoto, T. Oki, T. Sugahara, S. Kono, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 96 Issue: 5 Pages: 51102-51102
- DOI
  10.1063/1.3299261
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Blue-violet bow-tie self-pulsating laser diode with a peak power of 20 W and a pulse energy of 310 pJ2010
- Author(s)
  H. Watanabe, M. Kuramoto, S. Kono, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 3 Issue: 12 Pages: 122103-122103
- DOI
  10.1143/apex.3.122103
- NAID
  10027618372
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Passive and Hybrid Mode-Locking of an External-Cavity GaInN Laser Diode Incorporating a Strong Saturable Absorber2010
- Author(s)
  Tomoyuki Oki, Kyosuke Saito, Hideki Watanabe, Takao Miyajima, Masaru Kuramoto, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Letters
  
  Volume: 3 Pages: 32104-32104
- NAID
  10027013979
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] 100 W peak-power 1 GHz repetition picoseconds optical pulse generation using blue-violet GaInN diode laser mode-locked oscillator and optical amplifier2010
- Author(s)
  R. Koda, T. Oki, T. Miyajima, H. Watanabe, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 97 Issue: 2 Pages: 21101-21101
- DOI
  10.1063/1.3462942
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Passive and hybrid mode-locking of an external-cavity GaInN laser diode incorporating a strong saturable absorber2010
- Author(s)
  T. Oki, K. Saito, H. Watanabe, T. Miyajima, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 3 Issue: 3 Pages: 32104-32104
- DOI
  10.1143/apex.3.032104
- NAID
  10027013979
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Mode locking of an external-cavity bisection GaInN blue-violet laser diode producing 3 ps duration optical pulses2010
- Author(s)
  K. Saito, H. Watanabe, T. Miyajima, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 96 Issue: 3 Pages: 31112-31112
- DOI
  10.1063/1.3292025
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] 10-W peak-power picosecond optical pulse generation from a triple section blue-violet self-pulsating laser diode2010
- Author(s)
  H. Watanabe, T. Miyajima, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 3 Issue: 5 Pages: 52701-52701
- DOI
  10.1143/apex.3.052701
- NAID
  10027014689
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Mode locking of an external-cavity bi-section GaInN blue-violet laser diode producing 3ps duration optical pulses2010
- Author(s)
  Kyosuke Saito, Hideki Watanabe, Takao Miyajima, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Letters
  
  Volume: 96 Pages: 31122-31122
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] A high-peak-power UV picosecond-pulse light source based on a gain-switched 1.55 μm laser diode and its application to time-resolved spectroscopy of blue-violet materials2010
- Author(s)
  Sato, S. Kono, K. Saito, K. Sato, and H. Yokoyama
- Journal Title
  
  Opt. Express
  
  Volume: 18 Pages: 2522-2527
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Intensity autocorrelation measurement of 400 nm picosecond optical pulses from a GaInN mode-locked semiconductor laser diode using surface second harmonic generation of β-BaB_2O_4 crystal2010
- Author(s)
  S. Kono, T. Oki, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 3 Pages: 122701-122701
- NAID
  10027618482
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Volumetric optical recording using a 400 nm all-semiconductor picosecond laser2010
- Author(s)
  S. Tashiro, Y. Takemoto, H. Yamatsu, T. Miura, G. Fujita, T. Iwamuma, D. Ueda, H. Uchiyama, K. Yun, M. Kuramoto, T. Miyajima, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 3 Issue: 10 Pages: 102501-102501
- DOI
  10.1143/apex.3.102501
- NAID
  10027441171
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Enormously high-peak-power optical pulse generation from a single-transverse-mode GaInN blue-violet laser diode2010
- Author(s)
  Masaru Kuramoto, Tomoyuki Oki, Tomoya Sugahara, Shunsuke Kono, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Letters
  
  Volume: 96 Pages: 51102-51102
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] A high-peak-power UV picosecond light pulse source based on a gain-switched 1.55μm laser diode and its application for time-resolved spectroscopy of blue-violet materials2010
- Author(s)
  Aya Sato, Shunsuke Kono, Kyosuke Saito, Kiichi Sato, Hiroyuki Yokoyama
- Journal Title
  
  Optics Express
  
  Volume: 18 Pages: 2522-2527
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article]2009
- Author(s)
  伊藤弘昌(編著), 枝松圭一, 横山弘之, 四方潤一, 松浦祐司, 山田博仁, 中沢正隆, 廣岡俊彦, 佐藤学
- Journal Title
  
  フォトニクス基礎(フォトニクス基礎)
  
  Pages: 4-39
- Data Source
  KAKENHI-PROJECT-17GS1204
[Journal Article] All-optical phase modulations in a silicon wire waveguide at ultra-low light levels2009
- Author(s)
  N.Matsuda, R.Shimizu, Y.Mitsumori, H.Kosaka, A.Sato, H.Yokoyama, K.Yamada, T.Watanabe, T.Tsuchizawa, H.Fukuda, S.Itabashi, K.Edamatsu
- Journal Title
  
  Appl.Phys.Lett. 95
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17GS1204
[Journal Article] Mode locking of a GaInN semiconductor laser with an internal saturable absorber2009
- Author(s)
  M. Yoshita, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 94 Issue: 6 Pages: 61104-61104
- DOI
  10.1063/1.3079403
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] 高機能ピコ秒半導体レーザによる多光子バイオイメージング2009
- Author(s)
  横山弘之
- Journal Title
  
  オプトロニクス No.336
  
  Pages: 54-58
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Generation of over 10-W peak-power picosecond pulses by a gain-switched AlGaInN-based self-pulsating laser diode2009
- Author(s)
  T. Oki, S. Kono, M. Kuramoto, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Express
  
  Volume: 2 Pages: 32101-32101
- DOI
  10.1143/apex.2.032101
- NAID
  10025085023
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Picosecond optical pulse generation from self-pulsating bisectional GaN-based blue-violet laser diodes2009
- Author(s)
  T. Miyajima, H. Watanabe, M. Ikeda, and H. Yokoyama
- Journal Title
  
  Appl. Phys. Lett
  
  Volume: 94 Issue: 16 Pages: 161103-161103
- DOI
  10.1063/1.3106055
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Generation of over 10-W peak-power picosecond pulses by a gain-switched AlGaInN-based self-pulsating laser diode2009
- Author(s)
  Tomoyuki Oki, Shunsuke Kono, Masaru Kuramoto, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Express 2
- NAID
  10025085023
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Mode-Locking of a GaInN semiconductor laser with an internal saturable absorber.2009
- Author(s)
  Masahiro Yoshita, Masaru Kuramoto, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Letters 94
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Picosecond optical pulse generation from self-pulsating bisectional GaN-based blue-violet laser diodes2009
- Author(s)
  Takao Miyajima, Hideki Watanabe, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Letters
  
  Volume: 94 Pages: 161103-161103
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] 高機能ピコ秒半導体レーザによる多光子バイオイメージング2009
- Author(s)
  横山弘之
- Journal Title
  
  オプトロクス
  
  Volume: 336 Pages: 54-58
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] Mode-locking of a GaInN semiconductor laser with an internal saturable absorber2009
- Author(s)
  Masahiro Yoshita, Masaru Kuramoto, Masao Ikeda, Hiroyuki Yokoyama
- Journal Title
  
  Applied Physics Letters 94
  
  Pages: 61104-61104
- Data Source
  KAKENHI-PLANNED-20104004
[Journal Article] 半導体レーザ利用のスーパーコンチニュウム光を用いた高ピークパワー920nm超短パルス光源2007
- Author(s)
  横山弘之
- Journal Title
  
  第54回応用物理学関係連合講演会講演予稿集 AP0711108-03
  
  Pages: 1160-1160
- Data Source
  KAKENHI-PROJECT-16360037
[Presentation] 925nm帯LDの強パルス励起による第2量子準位発振の動特性2023
- Author(s)
  崔ユーウエン、安食聡一郎，竹内魁，日暮栄治，山田博仁，横山弘之
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 強パルス励起FP-LDの発振出力時間波形のスペクトル抽出波長依存性2023
- Author(s)
  安食聡一郎，崔ユーウエン、山田博仁，横山弘之
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 量子井戸半導体レーザーの第２量子準位発振のダイナミクスと制御2022
- Author(s)
  横山弘之，山田博仁
- Organizer
  Optics&Photonics Japan 2022
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] スーパーコンティニュウム光からの905nmピコ秒光パルスの抽出と増幅におけるASE成分の評価2022
- Author(s)
  崔ユーウエン、安食聡一郎，山田博仁，横山弘之
- Organizer
  第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] スーパーコンティニュウム光の増幅による光パルスの高ピークパワー化2022
- Author(s)
  C. Yuwen、佐藤和夫、山田博仁、横山弘之
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 光パルスの時間波形測定による自然放出光(ASE)ノイズ成分の評価2022
- Author(s)
  安食聡一郎，崔ユーウエン、山田博仁，横山弘之
- Organizer
  第83回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 1064 nm帯利得スイッチング半導体レーザ光源によるスーパーコンティニューム光発生を用いた980 nmピコ秒光パルス生成2021
- Author(s)
  鈴木喜晴、王暁民、関口翔大、多久島裕一、佐藤和夫、横山弘之
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 半導体レーザーからのバースト光パルスによる非線形光学波長変換2021
- Author(s)
  須貝亘、安食総一郎、佐藤和夫、山田博仁、横山弘之
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 光注入同期による利得スイッチ多モード半導体レーザーのピーク強度揺らぎの抑制2021
- Author(s)
  和田健司、横山弘之
- Organizer
  第82回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-20H05669
[Presentation] 半導体レーザーの大電流利得スイッチング動作による光パルス発生2012
- Author(s)
  横山冬矢
- Organizer
  日本物理学会2013年秋季大会
- Place of Presentation
  横浜国立大学
- Year and Date
  2012-09-18
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 利得スイッチングInGaN半導体レーザーの波長依存動特性2012
- Author(s)
  横山弘之, 石橋孝介, 佐藤綾耶, 陳少強, 吉田正裕, 秋山英文
- Organizer
  2012年春季第59回応用物理学関係連合講演会
- Place of Presentation
  早稲田大学(東京都)
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Short pulse generation by gain switching in In GaAs QW ridge Laser under optical pumping2011
- Author(s)
  Shaoqiang Chen, Masahiro Yoshita, Toshimitsu Mochizuki, Hidefumi Akiyama, Hiroyuki Yokoyama
- Organizer
  日本物理学会第66回年次大会
- Place of Presentation
  新潟大学五十嵐キャンパス
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Short pulse generation by gain switching in InGaAs QW ridge Laser under optical pumping2011
- Author(s)
  Shaoqiang Chen, Masahiro Yoshita, Toshimitsu Mochizuki, Hidefumi Akiyama, Hiroyuki Yokoyama
- Organizer
  日本物理学会第66回年次大会
- Place of Presentation
  新潟大学(新潟県)
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] リッジ型光励起量子井戸レーザーにおけるレーザー発振特性と利得の定量的評価2011
- Author(s)
  伊藤隆, 陳少強, 吉田正裕, 横山冬矢, 金昌秀, 望月敏光, 福田圭介, 丸山俊, 井原章之, 秋山英文, 横山弘之
- Organizer
  日本物理学会2011年秋季大会
- Place of Presentation
  富山大学(富山県)
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 世界初100ワット出力青紫色超短パルス半導体レーザーの共同開発2011
- Author(s)
  熊谷修, 横山弘之
- Organizer
  第3回東北大学国際産学連携シンポジウム
- Place of Presentation
  東京招待講演
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Wavelength-dependent short pulses generated by gain switching in optically pumped ridge quantum-well lasers2011
- Author(s)
  S.Q.Chen(陳少強), M.Yoshita(吉田正裕), T.Ito(伊藤隆), T.Yokoyama(横山冬矢), C.Kim(金昌秀), T.Mochizuki(望月敏光), K.Fukuda(福田圭介), S.Maruyama(丸山俊), H.Akiyama(秋山英文), H.Yokoyama(横山弘之), L.N.Pfeiffer, K.W.West ISSP
- Organizer
  日本物理学会2011年秋季大会
- Place of Presentation
  富山大学(富山県)
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 405nm帯GaInN半導体レーザ増幅器の開発2010
- Author(s)
  幸田倫太郎, 宮嶋孝夫, 大木智之, 渡邊秀輝, 倉本大, 池田昌夫, 横山弘之
- Organizer
  第57回応用物理学会関係連合講演会
- Place of Presentation
  東海大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] バイセクション型青紫色半導体レーザのモード同期動作による高ピークパワーピコ秒光パルスの発生2010
- Author(s)
  大木智之, 齋藤恭介, 渡邊秀輝, 宮嶋孝夫, 倉本大, 池田昌夫, 横山弘之
- Organizer
  第57回応用物理学会関係連合講演会
- Place of Presentation
  東海大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 光パルス注入による青色GaInN半導体レーザのキャリア寿命の評価2010
- Author(s)
  佐藤綾耶, 齊藤恭介, 横山弘之
- Organizer
  第57回応用物理学会関係連合講演会
- Place of Presentation
  東海大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Development of highly functional semiconductor lasers and application for nonlinear-optic imaging and processing2010
- Author(s)
  Hiroyuki Yokoyama
- Organizer
  School of EEE Nanyang Technological University IEEE Photonics Society Singapore Chapter Seminar
- Place of Presentation
  Singapore(invited)
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 3セクション型セルフパルセーションLDによる10Wピークパワーピコ秒パルスの発生2010
- Author(s)
  渡邊秀輝, 宮嶋孝夫, 倉本大, 池田昌夫, 横山弘之
- Organizer
  第57回応用物理学会関係連合講演会
- Place of Presentation
  東海大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 400nm帯GaInN半導体レーザ増幅器中のキャリア寿命の評価2010
- Author(s)
  齊藤恭介, 河野俊介, 幸田倫太郎, 渡邊秀輝, 宮嶋孝夫, 倉本大, 横山弘之
- Organizer
  第57回応用物理学会関係連合講演会
- Place of Presentation
  東海大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Entangled photons : generation, observation, and characterization(応用物理学会論文賞受賞記念講演)2009
- Author(s)
  松田信幸, 清水亮介, 三森康義, 小坂英男, 枝松圭一, 佐藤綾耶, 横山弘之, 山田浩治, 渡辺俊文, 土澤泰, 福田浩, 板橋聖一
- Organizer
  第70回秋季応用物理学会学術講演会
- Place of Presentation
  富山
- Year and Date
  2009-09-11
- Data Source
  KAKENHI-PROJECT-17GS1204
[Presentation] 波長1.55μm帯利得スイッチング半導体レーザを用いた紫外域ピコ秒パルス光源2009
- Author(s)
  佐藤綾耶, 河野俊介, 横山弘之
- Organizer
  2009年春季第56回応用物理学関係連合講演会
- Place of Presentation
  筑波大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 青紫色半導体レーザの強励起利得スイッチングによる高ピークパワーピコ秒パルス発生2009
- Author(s)
  河野俊介, 大木智之, 宮嶋孝夫, 池田昌夫, 横山弘之
- Organizer
  2009年春季第56回応用物理学関係連合講演会
- Place of Presentation
  筑波大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] A 200-W peak-power ultraviolet picosecond light pulse source based on a gain-switched 1.55μm laser diode2009
- Author(s)
  Hiroyuki Yokoyama, Shunsuke Kono, Aya Sato
- Organizer
  Nonlinear Optics 2009
- Place of Presentation
  Honolulu Hawaii USA
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 可飽和吸収層を有する青紫色半導体レーザのモード同期動作2009
- Author(s)
  吉田正裕, 倉本大, 池田昌夫, 横山弘之
- Organizer
  2009年春季第56回応用物理学関係連合講演会
- Place of Presentation
  筑波大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Curious gain-switching operation of GaInN blue-violet laser diodes producing high-peak-power picosecond optical pulses2009
- Author(s)
  Hiroyuki Yokoyama, Tomoyuki Oki, Shunsuke Kono, Masao Ikeda
- Organizer
  Nonlinear Optics 2009
- Place of Presentation
  Honolulu Hawaii USA
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Generation of picosecond optical pulses with a 2.4W optical peak power from self-pulsating GaN-based bi-sectional laser diodes2009
- Author(s)
  Takao Miyajima, Hideki Watanabe, Masao Ikeda, Hiroyuki Yokoyama
- Organizer
  8th International Conference on Nitride Semiconductors
- Place of Presentation
  ICC Jeju Korea
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] バイセクション型GaInN青紫色半導体レーザのモード同期動作2009
- Author(s)
  齊藤恭介, 渡邊秀輝, 宮嶋孝夫, 池田昌夫, 横山弘之
- Organizer
  第70回応用物理学会学術講演会
- Place of Presentation
  富山大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Two-photon-fluorescence correlation measurements of picosecond optical pulses generated from a 405-nm GaInN laser diode2009
- Author(s)
  Shunsuke Kono, Takao Miyajima, Masaru Kuramoto, Masao Ikeda, Hiroyuki Yokoyama
- Organizer
  Nonlinear Optics 2009
- Place of Presentation
  Honolulu Hawaii USA
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 青紫色半導体レーザにおける高ピークパワー光パルス発生の外部光注入による増強2009
- Author(s)
  大木智之, 河野俊介, 宮嶋孝夫, 池田昌夫, 横山弘之
- Organizer
  第70回応用物理学会学術講演会
- Place of Presentation
  富山大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Remarkable enhancement in the self-pulsating action of a weakly-index-guided AlGaAs laser diode by nanosecond electric-pulse excitation2009
- Author(s)
  Shunsuke Kono, Tomoyuki Oki, Takao Miyajima, Masaru Kuramoto, Hideki Watanabe, Masao Ikeda, Hiroyuki Yokoyama
- Organizer
  Nonlinear Optics 2009
- Place of Presentation
  Honolulu Hawaii USA
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 2光子蛍光を利用した400nm帯半導体レーザの光パルスの強度相関測定2009
- Author(s)
  河野俊介, 宮嶋孝夫, 倉本大, 池田昌夫, 横山弘之
- Organizer
  第70回応用物理学会学術講演会
- Place of Presentation
  富山大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] 可飽和吸収層を有する青紫色半導体レーザを用いた利得スイッチングによる光パルス発生2009
- Author(s)
  大木智之, 倉本大, 池田昌夫, 河野俊介, 横山弘之
- Organizer
  2009年春季第56回応用物理学関係連合講演会
- Place of Presentation
  筑波大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] バイセクション型青紫色半導体レーザを用いたセルフパルセーションによるピコ秒光パルス発生2009
- Author(s)
  渡邊秀輝, 宮嶋孝夫, 池田昌夫, 横山弘之
- Organizer
  2009年春季第56回応用物理学関係連合講演会
- Place of Presentation
  筑波大学
- Data Source
  KAKENHI-PLANNED-20104004
[Presentation] Multiwavelength kilowatt-peak-power light pulse source utilizing a picosecond diode laser for nonlinear bioimaging2007
- Author(s)
  H. Yokoyama
- Organizer
  Nonlinear Optics 2007
- Place of Presentation
  Kona, U.S.A.
- Year and Date
  2007-08-02
- Data Source
  KAKENHI-PROJECT-17GS1204

1. SUIZU Koji (20342800)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
2. AJIKI Hiroshi (60283735)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. MIZOGUCHI Koji (10202342)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. EDAMATSU Keiichi (10193997)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
5. ISHIHARA Hajime (60273611)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. NAKAYAMA Masaaki (30172480)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. KOSAKA Hideo (20361199)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
8. MITSUMORI Yasuyoshi (70375153)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
9. KOSHINO Kazuki (90332311)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. KIM Tegi (00295685)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. ISHIZAKA Satoshi (10443631)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. OOHATA Goro (10464653)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. AKIYAMA Hidefumi (40251491)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
14. Katayama Ryuji (40343115)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. SHIKATA Jun-ichi (50302237)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. MIYAZAKI Hitoshi (40183636)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. MIYAMOTO Katsuhiko (20375158)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. 窪谷茂幸 (70583615)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. 谷川智之 (90633537)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. 近藤丘 (10195901)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. 根本知己 (50291084)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
22. 榎木亮介 (00528341)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. 大友康平 (40547204)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
24. 石井宏和 (70743409)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
25. 高橋泰伽 (80968248)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
26. 小澤祐市 (90509126)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
27. CHEN Shaoqiang

# of Collaborated Projects: 0 results

# of Collaborated Products: 4 results
28. CHEN Shaoqing

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results

YOKOYAMA Hiroyuki 横山 弘之

横山 弘之 ヨコヤマ ヒロユキ

Research Projects

Research Products

Co-Researchers

Creation of Neurophotonics and Elucidation of Brain Functions

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of Compact Deep-UV Laser Based on Wavelength Converter Integrated with Blue Laser Light Sources

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Low-threshold optical gain and high-speed optical nonlinearity in low-dimensional semiconductor lasers

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of superefficient entangled-photon sources, detectors and entanglement re-covery protocol

Principal Investigator

Project Period (FY)

Research Category

Research Institution

Terahertz biophotonics by use of ultrafast telecommunication devices

Principal Investigator

Project Period (FY)

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Research Field

Research Institution

[Journal Article] All-synchronized picosecond pulses and time-gated detection improve the spatial resolution of two-photon STED microscopy in brain tissue imaging2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Dynamics of 2nd quantized state laser oscillation in gain-switched quantum-well semiconductor lasers2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Gain-switched pulses from InGaAs ridge-quantum-well lasers limited by intrinsic dynamical gain suppression2013

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Dynamics of short-pulse generation via spectral filtering from intensely excited gain-switched 1.55-μm distributed-feedback laser diodes2013

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Sub-5-ps optical pulse generation from a 1.55-μm distributed-feedback laser diode with nanosecond electric pulse excitation and spectral filtering2012

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 300 W peak power picosecond optical pulse generation by blue-violet GaInN mode-locked laser diode and semiconductor optical amplifier2012

Author(s)

Journal Title

DOI

NAID

Data Source

[Journal Article] Analysis of gain-switching characteristics including strong gain saturation effects in low-dimensional semiconductor lasers2012

Author(s)

Journal Title

NAID

URL

Data Source

[Journal Article] Direct generation of 20 W peak power picosecond optical pulses from an external-cavity mode-locked GaInN laser diode incorporating a flared waveguide2011

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Lateral resolution enhancement of laser scanning microscopy by a higher-order radially polarized mode beam2011

Author(s)

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Data Source

YOKOYAMA Hiroyuki 横山弘之

横山弘之ヨコヤマヒロユキ