OHTANI Keita 大谷啓太

Researcher Number	40333893
Affiliation (based on the past Project Information) *help	2007 – 2010: Tohoku University, 電気通信研究所, 助教 2002 – 2006: 東北大学, 電気通信研究所, 助手
Review Section/Research Field	Principal Investigator Electronic materials/Electric materials / Electronic materials/Electric materials Except Principal Investigator Science and Engineering / Electronic materials/Electric materials / Applied materials science/Crystal engineering
Keywords	Principal Investigator サブバンド / 量子井戸 / レーザ / 発光ダイオード / 中赤外 / スピン / 量子井戸構造 / 希薄磁性半導体 / フィルタ / II-VI族半導体 … More Except Principal Investigator 量子井戸 / テラヘルツ / 核スピン / nuclear spin / InAs / AlSb / スピン流 / 半導体スピントロニクス / 核磁気共鳴 / 顕微分光 / スピンホール効果 / 量子コンピュータ / MBE・エピタキシャル / 高性能レーザー / テラヘルツ赤外材料・素子 / サブバンド / MBE、エピタキシャル / 高性能レーザ / 赤外線素子 / 光源技術 / 量子エレクトロニクス / トンネル現象 / 赤外材料・素子 / 量子コンピューター / 歳差運動 / GaAs / ファラデー回転 / quantum computer / precession / quantum well / Gallium Arsenide / Faraday rotation / スピンコヒーレンス / 磁性半導体 / キャリアスピン / キャリア誘起強磁性 / スピン注入 / 核スピン共鳴 / 強磁性体 / Spin coherence / magnetic semiconductors / carrier spin / carrier-induced ferromagnetism / spin injection / nuclear magnetic resonance / ferromagnet / 結晶工学 / ワイドギャップ半導体 / 酸化物半導体 / トランジスタ / スピントロニクス / セラミックス / 光物性 / コンビナトリアル / ワイドギャップ光学体 / Crystals Engineerng / Wide band gap Semiconductor / Oxide Semiconductors / Transistors / Spintronics / Ceramics / Optical Properties / Combinatorial / 量子カスケードレーザー / サブバンド間光学遷移 / 中赤外 / 量子カスケードレーザ / Quantum-cascade laser / Intersubband transition / THz / Mid-infrared Less

Opitical Control and Detection fo Nuclear Spin Dynamics in Semiconductor Quantum Structures
- Principal Investigator
  
  OHNO Yuzo
- Project Period (FY)
  2007 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research on Priority Areas
- Review Section
  
  Science and Engineering
- Research Institution
  Tohoku University
Control of carrier dimensionality in InAs quantum cascade lasers and its effect on laser characteristics
- Principal Investigator
  
  OHNO Hideo
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Tohoku University
偏光制御可能な多重波長量子カスケードレーザーPrincipal Investigator
- Principal Investigator
  
  大谷啓太
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Young Scientists (A)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Tohoku University
Development of high-performance InAs quantum cascade lasers
- Principal Investigator
  
  OHNO Hideo
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Tohoku University
ナロウギャップ半導体短波長量子カスケードレーザーPrincipal Investigator
- Principal Investigator
  
  大谷啓太
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Young Scientists (A)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Tohoku University
希薄磁性半導体量子構造スピン読み出し素子Principal Investigator
- Principal Investigator
  
  大谷啓太
- Project Period (FY)
  2002
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Tohoku University
Application of all-optical nuclear magnetic resonance to quantum computing
- Principal Investigator
  
  OHNO Yuzo
- Project Period (FY)
  2002 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research on Priority Areas
- Review Section
  
  Science and Engineering
- Research Institution
  Tohoku University
Spin injection and spin control in magnetic/non-magnetic semiconductor quantum structures
- Principal Investigator
  
  OHNO Yuzo
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Applied materials science/Crystal engineering
- Research Institution
  Tohoku University
Exploration of photonic electronic magnetic and their mutual functionalities in non-equilibrium and transparent oxide thin films accelerated by parallel epitaxy
- Principal Investigator
  
  KAWASAKI Masashi
- Project Period (FY)
  2002 – 2006
- Research Category
  
  Grant-in-Aid for Creative Scientific Research
- Research Institution
  Tohoku University

All 2010 2009 2008 2007 2006 2005 2004 2003

All Journal Article Presentation Patent

[Journal Article] Intersubband optical transitions in ZnO-based quantum wells grown by plasma-assisted molecular beam epitaxy2009
- Author(s)
  K. Ohtani, M. Belmoubarik, H. Ohno
- Journal Title
  
  Journal of Crystal Growth Vol.311
  
  Pages: 2176-2176
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Thermally activated longitudinal optical phonon scattering of a 3.8 THz GaAs quantum cascade laser2009
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, Hideo Ohno
- Journal Title
  
  Applied Physics Express Vol.2
  
  Pages: 22102-22102
- NAID
  10025084510
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Intersubband optical transitions in ZnO-based quantum wells grown by plasma-assisted molecular beam epitaxy2009
- Author(s)
  K.Ohtani, M.Belmoubarik, H.Ohno
- Journal Title
  
  Journal of Crystal Growth 311
  
  Pages: 2176-2178
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Thermally activated longitudinal optical phonon scattering of a 3.8 THzGaAs quantum cascade laser2008
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, and Hideo Ohno
- Journal Title
  
  Applied Physics Express 2
- NAID
  10025084510
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] 量子カスケードレーザー用材料2008
- Author(s)
  大谷啓太、大野英男
- Journal Title
  
  レーザー研究 36
  
  Pages: 70-74
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18686028
[Journal Article] Intersubband transitions in ZnO quantum wells2008
- Author(s)
  M. Belmoubarik, K. Ohtani, H. Ohno
- Journal Title
  
  Applied Physics Letters Vol.92
  
  Pages: 191906-191906
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Intersubband transitions in ZnO multiple quantum wells2008
- Author(s)
  M. Belmoubarik, K. Ohtani, and H. Ohno
- Journal Title
  
  Applied Physics Letters 92
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Simultaneous lasing of interband and intersubband transitions in InAs/AlSb quantum cascade laser structures2008
- Author(s)
  K. Ohtani, H. Ohnishi, H. Ohno
- Journal Title
  
  Applied Physics Letters Vol.92
  
  Pages: 41102-41102
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Simultaneous lasing of interband and intersubband transitions in InAs/AlSb quantum cascade laser structures2008
- Author(s)
  K. Ohtani, H. Ohnishi, and H. Ohno
- Journal Title
  
  Applied Physics Letters 92
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18686028
[Journal Article] Simultaneous lasing of interband and intersubband transitions in InAs/AlSb quantum cascade laser structures2008
- Author(s)
  K. Ohtani, H. Ohnishi, and H. Ohno
- Journal Title
  
  Applied Physics Letters Vol. 92
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19206033
[Journal Article] Room-temperature InAs/AlSb quantum-cascade laser operating at 8.9 μm2007
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Electronics Letters Vol. 49, No. 3
  
  Pages: 520-522
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] Room-temperature InAs/AlSb quantum-cascade laser operating at 8.9 μm2007
- Author(s)
  K.Ohtani
- Journal Title
  
  Electronics Letters Vol. 49、 No. 3
  
  Pages: 520-522
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] Room-temperature InAs/AlSb quantum-cascade laser operating at 8.9 μm2007
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Electronics Letters Vol.49,No.3
  
  Pages: 520-522
- Data Source
  KAKENHI-PROJECT-18686028
[Journal Article] Room-temperature InAs/AlSb quantum cascade laser operating at 8.9 μm2007
- Author(s)
  K.Ohtani
- Journal Title
  
  Electronics Letters Vol.49, No.3
  
  Pages: 520-522
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] Above room-temperature operation of InAs/AlGaSb superlattice quantum cascade lasers operating at 12 μm2007
- Author(s)
  K. Ohtani, Y. Moriyasu, H. Ohnishi, and H. Ohno
- Journal Title
  
  Applied Physics Letters 90
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18686028
[Journal Article] Sr_2TMO_3(TM=Ni,Co) compounds with ld TM-O chains2006
- Author(s)
  M.Ohtani
- Journal Title
  
  Adv.Mater. 18
  
  Pages: 2541-2544
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] Development of high-throughput combinatorial terahertz time-domain spectrometer and its application to ternary composition-spread film2006
- Author(s)
  M. Ohtani
- Journal Title
  
  Appl. Surf. Sci. 252
  
  Pages: 2622-2627
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] Sr_2TMO_3(TM = Ni, Co) compounds withid TM-O chains2006
- Author(s)
  M. Ohtani
- Journal Title
  
  Adv. Mater. 18
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] Development of high-throughput combinatorial terahertz time-domain spectrometer and its application to temary composition-spread film2006
- Author(s)
  M.Ohtani
- Journal Title
  
  Appl.Surf.Sci. 252・7
  
  Pages: 2622-2627
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] Sr_2TMO_3(TM=Ni,Co) compounds with 1d TM-O chains2006
- Author(s)
  M.Ohtani
- Journal Title
  
  Adv.Mater. 18
  
  Pages: 2541-2544
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] Development of high-throughput combinatorial terahertz time-domain spectormeter and its application to ternary composition-spread film2006
- Author(s)
  M.Ohtani
- Journal Title
  
  Appl.Surf.Sci. 252
  
  Pages: 2622-2627
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] Mid-infrared InAs/AlGaSb superlattice quantum cascade lasers2005
- Author(s)
  K.Ohtani
- Journal Title
  
  Applied Physics Letters Vol.87
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] Mid-infrared InAs/AlGaSb superlattice quantum cascade lasers2005
- Author(s)
  K.Ohtani
- Journal Title
  
  Applied Physics Letters Vol. 87
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] InAs quantum cascade lasers based on coupled quantum well structures2005
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Japanese Journal of Applied Physics 44
  
  Pages: 2572-2574
- NAID
  10015704914
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] InAs Quantum Cascade Lasers Based on Coupled Quantum Well Structures2005
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Jpn.J.Appl.Phys. (掲載決定)(印刷中)
- NAID
  10015704914
- Data Source
  KAKENHI-PROJECT-16686020
[Journal Article] Mid-infrared InAs/AlGaSb superlattice quantum cascade lasers2005
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Applied Physics Letters 87
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] InAs quantum cascade lasers based on coupled quantum well structures2005
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Japanese Journal of Applied Physics 44
  
  Pages: 2572-2574
- NAID
  10015704914
- Data Source
  KAKENHI-PROJECT-16686020
[Journal Article] InAs quantum cascade lasers based on coupled quantum well structures2005
- Author(s)
  K.Ohtani
- Journal Title
  
  Japanese Journal of Applied Physics Vol.44, No.4B
  
  Pages: 2572-2574
- NAID
  10015704914
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] Mid-infrared InAs/AlGaSb superlattice quantum cascade lasers2005
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Applied Physics Letters 87
- Data Source
  KAKENHI-PROJECT-16686020
[Journal Article] High throughput oxide lattice engineering by parallel laser molecular-beam epitaxy and concurrent x-ray diffraction2005
- Author(s)
  M.Ohtani
- Journal Title
  
  Rev.Sci.Instrum. 76
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14GS0204
[Journal Article] InAs quantum cascade lasers based on coupled quantum well structures2005
- Author(s)
  K.Ohtani
- Journal Title
  
  Japanese Journal of Applied Physics Vol. 44, No. 4B
  
  Pages: 2572-2574
- NAID
  10015704914
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Journal Article] A Low Threshold Current Density InAs/AlGaSb Superlattice Quantum Cascade Laser Operating at 14μm2004
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Jpn.J.Appl.Phys (Express Letters) 43,7A
- NAID
  10013276870
- Data Source
  KAKENHI-PROJECT-16686020
[Journal Article] A Low Threshold Current Density InAs/AlGaSb Superlattice Quantum Cascade Laser Operating at 14 um2004
- Author(s)
  K.Ohtani, K.Fujita, H.Ohno
- Journal Title
  
  Jpn.J.Appl.Phys Vol.43 Part 2, No.7A
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14205002
[Journal Article] A Low Threshold Current Density InAs/AlGaSb Superlattice Quantum Cascade Laser Operating at 14 um2004
- Author(s)
  K.Ohtani
- Journal Title
  
  Jpn.J.Appl.Phys. 43
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14205002
[Journal Article] Drift Transport of Spin-Polarized Electrons in GaAs2003
- Author(s)
  H.Sanada, I.Arata, Y.Ohno, K.Ohtani, Z.Chen, K.Kayanuma, Y.Oka, F.Matsukura, H.Ohno
- Journal Title
  
  Journal of Superconductivity 16, Issue 1
  
  Pages: 217-219
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14205002
[Journal Article] Zincblende CrSb/GaAs multilayer structures with room-temperature ferromagnetism2003
- Author(s)
  J.H.Zhao, F.Matsukura, K.Takamura, D.Chiba, Y.Ohno, K.Ohtani, H.Ohno
- Journal Title
  
  Materials Science in Semiconductor Processing Vol.6
  
  Pages: 507-509
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14205002
[Journal Article] Drift Transport of Spin-Polarized Electrons in GaAs2003
- Author(s)
  H.Sanada, I.Arata, Y.Ohno, K.Ohtani, Z.Chen, K.Kayanuma, Y.Oh, F.Matsukura, H.Ohno
- Journal Title
  
  Journal of Superconductivity vol. 16, Issue 1
  
  Pages: 217-219
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14076203
[Patent] 量子カスケードレーザ2008
- Inventor(s)
  森安嘉貴, 大野英男, 大谷啓太
- Industrial Property Rights Holder
  旭化成エレクトロニクス (株)、東北大学
- Filing Date
  2008-02-06
- Data Source
  KAKENHI-PROJECT-19206033
[Patent] 量子カスケードレーザ2008
- Inventor(s)
  森安嘉貴、大野英男、大谷啓太
- Industrial Property Rights Holder
  森安嘉貴、大野英男、大谷啓太
- Industrial Property Number
  2008-026653
- Filing Date
  2008-02-06
- Data Source
  KAKENHI-PROJECT-18686028
[Patent] 量子カスケードレーザ2008
- Inventor(s)
  森安嘉貴、大野英男、大谷啓太
- Industrial Property Rights Holder
  森安嘉貴、大野英男、大谷啓太
- Industrial Property Number
  2008-026653
- Filing Date
  2008-02-06
- Data Source
  KAKENHI-PROJECT-19206033
[Patent] 量子カスケードレーザ2006
- Inventor(s)
  森安嘉貴, 大野英男, 大谷啓太
- Industrial Property Rights Holder
  森安嘉貴, 大野英男, 大谷啓太
- Industrial Property Number
  2006-203239
- Filing Date
  2006
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17206029
[Patent] 量子カスケードレーザ2006
- Inventor(s)
  森安嘉貴, 大野英男, 大谷啓太
- Industrial Property Rights Holder
  森安嘉貴, 大野英男, 大谷啓太
- Industrial Property Number
  2006-203239
- Filing Date
  2006
- Data Source
  KAKENHI-PROJECT-18686028
[Presentation] 金属導波路構造GaAsテラヘルツ量子カスケードレーザの発振特性2010
- Author(s)
  大谷啓太, 林宗澤, 大野英男
- Organizer
  応用物理学会テラヘルツ電磁渡技術研究会、電子情報通信学会エレクトロニクスソサイエティテラヘルツ応用システム時限研究会合同研究討論会
- Place of Presentation
  秋保リゾート・ホテルクレセント、仙台
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] 金属プラズモン導波路構造を有するテラヘルツ量子カスケードレーザ2010
- Author(s)
  大谷啓太, 林宗澤, 大野英男
- Organizer
  第57回応用物理学関係連合講演会
- Place of Presentation
  東海大学、平塚
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] 金属プラズモン導波路構造を有するテラヘルツ量子カスケードレーザ2010
- Author(s)
  大谷啓太, 林宗澤, 大野英男
- Organizer
  第57回応用物理学関係連合講演会
- Place of Presentation
  東海大学湘南キャンパス
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] 金属導波路構造GaAsテラヘルツ量子カスケードレーザの発振特性2010
- Author(s)
  大谷啓太, 林宗澤, 大野英男
- Organizer
  応用物理学会テラヘルツ電磁波技術研究会、電子情報通信学会エレクトロニクスソサイエティテラヘルツ応用システム時限研究会合同研究討論会、秋保リゾート・ホテルクレセント
- Place of Presentation
  仙台
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Intersubband transitions in ZnO quantum wells2010
- Author(s)
  K.Ohtani, M.Belmoubarik, H.Ohno
- Organizer
  SPIE Photonics West
- Place of Presentation
  San Francisco, California, USA
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Intersubband transitions in ZnO quantum wells2010
- Author(s)
  K. Ohtani, M. Belmoubarik, H. Ohno
- Organizer
  SPIE Photonics West, San Francisco
- Place of Presentation
  California, USA
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] InAs quantum cascade lasers : molecular beam epitaxy, current laser performance, and perspective2009
- Author(s)
  K.Ohtani
- Organizer
  14^<th> International Conference on Narrow Gap Semi conductors and Systems (NGS^2-14)
- Place of Presentation
  Sendai, Japan
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Conduction to valence band offset ratio of ZnO/MgZnO quantum wells2009
- Author(s)
  K. Ohtani, M. Belmoubarik, H. Ohno
- Organizer
  The 10^<th> International Conference on Intersubband Transitions in Quantum Wells
- Place of Presentation
  Montreal, Canada
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Fabrication and operation of a metal-metal waveguide GaAs terahertz quantum cascade laser2009
- Author(s)
  T.T.Lin, K.Ohtani, H.Ohno
- Organizer
  14th International Conference on Modulated Semiconductor Structures (MSS-14)
- Place of Presentation
  Kobe, Japan
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Quantum cascade lasers2009
- Author(s)
  K. Ohtani, H. Ohno
- Organizer
  2^<nd> Japan/German Workshop "Nanolaser Based Optical Sensing"
- Place of Presentation
  Tokyo, Japan
- Year and Date
  2009-02-17
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Fabrication of Copper metal-metal THz waveguide by radio-frequency sputtering method2009
- Author(s)
  K. Ohtani, T.-T. Lin, H. Ohno
- Organizer
  The 10^<th> International Conference on Intersubband Transitions in Quantum Wells
- Place of Presentation
  Montreal, Canada
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] InAs quantum cascade lasers : molecular beam epitaxy, current laser performance, and perspective2009
- Author(s)
  K. Ohtani
- Organizer
  14^<th> International Conference on Narrow Gap Semiconductors and Systems (NGS^2-14)
- Place of Presentation
  Sendai, Japan
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Fabrication of Cu-based metal-metal waveguide GaAs quantum cascade lasers2009
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, Hideo Ohno
- Organizer
  2009年秋季第70回応用物理学会学術講演会
- Place of Presentation
  富山大学
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Terahertz GaAs quantum cascade lasers2009
- Author(s)
  K. Ohtani, T.-T. Lin, H. Ohno
- Organizer
  2nd Sweden-Japan Terahertz Symposium
- Place of Presentation
  Goteborg, Sweden
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Fabrication of Cu-based metal-metal waveguide GaAs quantum cascade lasers2009
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, Hideo Ohno
- Organizer
  2009年秋季第70回応用物理学会学術講演会
- Place of Presentation
  富山大学、富山
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Fabrication and operation of a metal-metal waveguide GaAs terahertz quantum cascade laser2009
- Author(s)
  T. T. Lin, K. Ohtani, H. Ohno
- Organizer
  14th International Conference on Modulated Semiconductor Structures (MSS-14)
- Place of Presentation
  Kobe Japan
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Intersubband optical transitions in ZnO-based quantum wells grown by plasma-assisted molecular beam epitaxy2008
- Author(s)
  K. Ohtani, M. Belmoubarik, H. Ohno
- Organizer
  The 15th International Conference on Molecular Beam Epitaxy
- Place of Presentation
  The University of British Columbia, Canada
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Development of mid-infrared and THz quantum cascade lasers at Tohoku University2008
- Author(s)
  K. Ohtani, H. Ohno
- Organizer
  International Symposium on Terahertz between Japan and Sweden
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Thermal property of an InAs/A1Sb quantum cascade laser2008
- Author(s)
  Keita Ohtani and Hideo Ohno
- Organizer
  International Quantum Cascade Lasers School & Workshop
- Place of Presentation
  Monte Verita, Switzerland
- Year and Date
  2008-09-17
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Development of mid-infrared and THz quantum cascade lasers at Tohoku University2008
- Author(s)
  K. Ohtani and H. Ohno
- Organizer
  International Symposium on Terahertz between Japan and Sweden
- Place of Presentation
  Tokyo Metropolitan City Hall, Japan
- Year and Date
  2008-05-28
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Temperature dependence of threshold current density of terahertz QCL : Comparison with mid-infrared QCL2008
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, Hideo Ohno
- Organizer
  International Quantum Cascade Lasers School & Workshop
- Place of Presentation
  Monte Verita, Switzerland
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Temperature dependence of threshold current density of terahertz QCL2008
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, Hideo Ohno
- Organizer
  2008 International Conference on Solid State Devices and Materials
- Place of Presentation
  Tsukuba International Congress Center, Japan
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Thermal property of an InAs/AlSb quantum cascade laser2008
- Author(s)
  Keita Ohtani, Hideo Ohno
- Organizer
  International Quantum Cascade Lasers School & Workshop
- Place of Presentation
  Monte Verita,, Switzerland
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] テラヘルツ量子カスケードレーザの現状と問題点2008
- Author(s)
  大谷啓太
- Organizer
  量子エレクトロクス研究会・テラヘルツ電磁波技術研究会合同研究会
- Place of Presentation
  上智大学軽井沢セミナーハウス
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] 分子線エピタキシによるテラヘルツGaAs量子カスケードレーザの成長2008
- Author(s)
  大谷啓太, 林宗澤, 大野英男
- Organizer
  第38回結晶成長国内学会
- Place of Presentation
  仙台市戦災復興記念会館
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] テラヘルツ量子カスケードレーザの現状と問題点(招待講演)2008
- Author(s)
  大谷啓太
- Organizer
  量子エレクトロクス研究会・テラヘルツ電磁波技術研究会合同研究会
- Place of Presentation
  軽井沢
- Year and Date
  2008-01-11
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] 分子線エピタキシによるテラヘルツGaAs量子カスケードレーザの成長2008
- Author(s)
  大谷啓太、林宗澤、大野英男
- Organizer
  第38回結晶成長国内学会(NGCCG-38)
- Place of Presentation
  仙台市戦災復興記念会館
- Year and Date
  2008-11-05
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Temperature dependence of threshold current density of terahertz QCL : Comparison with mid-infrared QCL2008
- Author(s)
  Tsung-Tse Lin, Keita Ohtani, Hideo Ohno
- Organizer
  2008年春季第55回応用物理学関係連合講演会
- Place of Presentation
  日本大学理工学部船橋キャンパス
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Temperature dependence of threshold current density of terahertz QCL: Comparison with mid-infrared QCL2008
- Author(s)
  Tsung Tse Lin, Keita Ohtani, and Hideo Ohno
- Organizer
  2008年春季第55回応用物理学関係連合講演会
- Place of Presentation
  日本大学理工学部船橋キャンパス
- Year and Date
  2008-03-28
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Photocurrent spectroscopy of InAs quantum-cascade laser structures2007
- Author(s)
  K. Ohtani and H. Ohno
- Organizer
  15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors
- Place of Presentation
  Tokyo University, Tokyo
- Year and Date
  2007-07-24
- Data Source
  KAKENHI-PROJECT-18686028
[Presentation] Photocurrent spectroscopy of InAs quantum-cascade laser structures2007
- Author(s)
  K. Ohtani and H. Ohno
- Organizer
  15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors
- Place of Presentation
  Tokyo University, Tokyo
- Year and Date
  2007-07-24
- Data Source
  KAKENHI-PROJECT-19206033
[Presentation] Photocurrent spectroscopy of InAs quantum-cascade laser structures2007
- Author(s)
  K. Ohtani, H. Ohno
- Organizer
  15^<th> International Conference on Nonequilibrium Carrier Dynamics in Semiconductors
- Place of Presentation
  Tokyo, Japan
- Data Source
  KAKENHI-PROJECT-19206033

1. MATSUKURA Fumihiro (50261574)

# of Collaborated Projects: 4 results

# of Collaborated Products: 0 results
2. OHNO Hideo (00152215)

# of Collaborated Projects: 4 results

# of Collaborated Products: 41 results
3. OHNO Yuzo (00282012)

# of Collaborated Projects: 3 results

# of Collaborated Products: 4 results
4. SATO Shigeo (10282013)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. KAWASAKI Masashi (90211862)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. KAWAZOE Yoshiyuki (30091672)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. FUKUMURA Tomoteru (90333880)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. OHTOMO Akira (10344722)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 阿藤敏行 (40241567)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. LIN Tsung-tse

# of Collaborated Projects: 1 results

# of Collaborated Products: 18 results
11. BELMOUBARIK Mohamed

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
12. SATO Hiroki

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 松倉文ひろ

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results

OHTANI Keita 大谷 啓太

Research Projects

Research Products

Co-Researchers

Opitical Control and Detection fo Nuclear Spin Dynamics in Semiconductor Quantum Structures

Principal Investigator

Project Period (FY)

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Review Section

Research Institution

Control of carrier dimensionality in InAs quantum cascade lasers and its effect on laser characteristics

Principal Investigator

Project Period (FY)

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Research Institution

偏光制御可能な多重波長量子カスケードレーザーPrincipal Investigator

Principal Investigator

Project Period (FY)

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Research Institution

Development of high-performance InAs quantum cascade lasers

Principal Investigator

Project Period (FY)

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Research Institution

ナロウギャップ半導体短波長量子カスケードレーザーPrincipal Investigator

Principal Investigator

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Research Institution

希薄磁性半導体量子構造スピン読み出し素子Principal Investigator

Principal Investigator

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Research Field

Research Institution

Application of all-optical nuclear magnetic resonance to quantum computing

Principal Investigator

Project Period (FY)

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Review Section

Research Institution

Spin injection and spin control in magnetic/non-magnetic semiconductor quantum structures

Principal Investigator

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Research Field

Research Institution

Exploration of photonic electronic magnetic and their mutual functionalities in non-equilibrium and transparent oxide thin films accelerated by parallel epitaxy

Principal Investigator

Project Period (FY)

Research Category

Research Institution

[Journal Article] Intersubband optical transitions in ZnO-based quantum wells grown by plasma-assisted molecular beam epitaxy2009

Author(s)

Journal Title

Data Source

[Journal Article] Thermally activated longitudinal optical phonon scattering of a 3.8 THz GaAs quantum cascade laser2009

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Intersubband optical transitions in ZnO-based quantum wells grown by plasma-assisted molecular beam epitaxy2009

Author(s)

Journal Title

Data Source

[Journal Article] Thermally activated longitudinal optical phonon scattering of a 3.8 THzGaAs quantum cascade laser2008

Author(s)

Journal Title

NAID

Data Source

[Journal Article] 量子カスケードレーザー用材料2008

Author(s)

Journal Title

Data Source

[Journal Article] Intersubband transitions in ZnO quantum wells2008

OHTANI Keita 大谷啓太