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Generation mechanism of terahertz electromagnetic waves in semiconductor quantum structures

Research Project

Project/Area Number 18340090
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics I
Research InstitutionOsaka City University

Principal Investigator

NAKAYAMA Masaaki  Osaka City University, 大学院・工学研究科, 教授 (30172480)

Co-Investigator(Kenkyū-buntansha) MIZOGUCHI Kohji  大阪府立大学, 大学院・理学研究科, 教授 (10202342)
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥16,890,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2008: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2007: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2006: ¥8,700,000 (Direct Cost: ¥8,700,000)
Keywordsテラヘルツ電磁波 / 多重量子井戸構造 / 超格子 / コヒーレント光学フォノン / ブロッホ振動 / 光ゲーティング法 / ポンプ・プローブ分光 / ワニエ・シュタルク局在 / テラヘルツ電磁波発生 / 多重量子井戸 / ポンプ・プローブ分光法 / 量子閉じこめシュタルク効果 / ポンプ・プローブ法 / コヒーレント工学フォノン
Research Abstract

GaAs/AlAs多重量子井戸構造を試料として、コヒーレント縦光学フォノン(位相の揃った縦型光学格子振動)から、高強度かつ高単色性のテラヘルツ(THz : 1012Hz)電磁波が発生する機構を明らかにした。また、励起子(電子と正孔のクーロン束縛状態)の量子干渉効果(2種類の励起子状態の量子力学的干渉)がコヒーレントフォノンの駆動力となり、THz電磁波が増強されることを実証した。さらに、GaAs/AlAs超格子を試料として、電場による電子・正孔波動関数の局在過程において、THz領域で振動数可変のブロッホ振動(電子・正孔波束のコヒーレント振動現象)の新奇な振る舞いを見いだした。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (46 results)

All 2009 2008 2007 2006

All Journal Article (22 results) (of which Peer Reviewed: 17 results) Presentation (24 results)

  • [Journal Article] Enhanced terahertz emission from coherent longitudinal optical phonons in a quantum well structure under applied bias2009

    • Author(s)
      K.Mizoguchi, Y.Kanzawa, S.Saito, K.Sakai, and M.Nakayama
    • Journal Title

      Appl. Phys. Lett. 94

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Pump-energy dependence of usual and unusual Bloch oscillations in a GaAs/AlAs superlattice2009

    • Author(s)
      T.Hasegawa, K.Mizoguchi, and M.Nakayama
    • Journal Title

      phys. stat. sol. (c)6

      Pages: 264-267

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Pump-energy dependence of usual and unusual Bloch oscillations in a GaAs/AlAs superlattice2009

    • Author(s)
      Takayuki Hasegawa
    • Journal Title

      Phys. Status Solidi C 6

      Pages: 264-267

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced THz emission from coherent LO phonons in a quantum well structure under applied bias2009

    • Author(s)
      Kohji Mizoguchi
    • Journal Title

      Appl. Phys. Lett. (in press)

      Pages: 3-3

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interactions between coherent optical phonons and excitonic quantum beats in GaAs/AlAs multiple quantum wells strategy for enhancement of terahertz radiation from coherent optical phonons2008

    • Author(s)
      M.Nakayama and K.Mizoguchi
    • Journal Title

      phys. stat. sol (c)5

      Pages: 2911-2916

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Excitonic quantum beat at the mini-Brillouin-zone boundary in a GaAs/AlAs superlattice2008

    • Author(s)
      T.Hasegawa, K.Mizoguchi, and M.Nakayama
    • Journal Title

      J. Lumin 128

      Pages: 1056-1058

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of terahertz radiation from coherent optical phonons via impulsive interference of excitons in GaAs/AlAs multiple quantum wells2008

    • Author(s)
      M.Nakayama, S.Itoh, K.Mizoguchi, S.Saito, K.Akahane, N.Yamamoto, and K.Sakai
    • Journal Title

      J. Lumin 128

      Pages: 1043-1045

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Generation of intense and monochromatic terahertz radiation from coherent longitudinal optical phonons in GaAs/AlAs multiple quantum wells at room temperature2008

    • Author(s)
      M.Nakayama, S.Ito, K.Mizoguchi, S.Saito, and K.Sakai
    • Journal Title

      Appl. Phys. Express 1

    • NAID

      10024292428

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Observation of the second- nearest-neighbor Bloch oscillation in a GaAs/AlAs superlattice2008

    • Author(s)
      T.Hasegawa, K.Mizoguchi, and M.Nakayama
    • Journal Title

      phys. stat. sol. (c)5

      Pages: 203-206

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Generation of intense and monochromatic terahertz radiation from coherent longitudinal optical phonons in GaAs/AIAs multiple quantum wells at room temperature2008

    • Author(s)
      M.Nakayama
    • Journal Title

      Applied Physics Express 1

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Excitonic quantum beats at the mini-Brillouin zone boundary in a GaAs/AlAs superlattice2008

    • Author(s)
      T.Hasegawa
    • Journal Title

      Journal of Luminescence 128

      Pages: 1056-1058

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of terahertz radiation from coherent optical phonons via impulsive interference of excitons in GaAs/AlAs multiple quantum wells2008

    • Author(s)
      M.Nakayama
    • Journal Title

      Journal of Luminescence 128

      Pages: 1043-1045

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observation of the second-nearest-neighbor Bloch oscillation in a GaAs/AlAs superlattice2008

    • Author(s)
      T.Hasegawa
    • Journal Title

      phys.stat.sol.(c) 5

      Pages: 203-206

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transformation process from quantum beats of miniband excitons to Bloch oscillations in a GaAs/AlAs superlattice under applied electric fields2007

    • Author(s)
      T.Hasegawa, K.Mizoguchi, M.Nakayama
    • Journal Title

      Phys. Rev. B76

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Terahertz radiation from coherent confined optical phonons in GaAs/AlAs multiple quantum wells2007

    • Author(s)
      M.Nakayama, K.Mizoguchi, O.Kojima, T.Furuichi, A.Mizumoto, S.Saito, A.Shouji, and K.Sakai
    • Journal Title

      phys. stat. sol. (a)204

      Pages: 518-521

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Transformation process from quantum beats of miniband excitons to Bloch oscillations in a GaAs/AlAs superlattice under applied electric fields2007

    • Author(s)
      T.Hasegawa
    • Journal Title

      Physical Review B 76

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photocurrent bistability in a GaAs/Al_xGa_1-_xAs superlattice under resonant-coupling conditions of Wannier-Stark localization states2007

    • Author(s)
      T.Hasegawa
    • Journal Title

      Journal of Applied Physics vol.101

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Terahertz radiation from coherent confined optical phonons in GaAs/AlAs multiple quantum wells2007

    • Author(s)
      M.Nakayama
    • Journal Title

      Physica Status Solidi A vol.204,No.2

      Pages: 518-521

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Miniband-width effects on Wannier-Stark localization of the first and second quantized states in a GaAs/AlAs superlattice2007

    • Author(s)
      T.Hasegawa
    • Journal Title

      Journal of Luminescence vol.122-123

      Pages: 841-843

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Characterization of terahertz electromagnetic waves from coherent longitudinal optical phonons in GaAs/AlAs multiple quantum wells2006

    • Author(s)
      K.Mizoguchi, A, Mizumoto, M.Nakayama, S.Saito, A.Shoji, K.Sakai, N.Yamamoto, and K.Akahane
    • Journal Title

      J. Appl. Phys. 100

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of terahertz electromagnetic waves from coherent longitudinal optical phonons in GaAs/AlAs multiple quantum wells2006

    • Author(s)
      K.Mizoguchi
    • Journal Title

      Journal of Applied Physics vol.100

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Photoluminescence from excitons at the mini-brillouin-zone boundary in a GaAs/AlAs superlattice2006

    • Author(s)
      T.Hasegawa
    • Journal Title

      Physica Status Solidi B vol.243,No.14

      Pages: 3825-3828

    • Related Report
      2006 Annual Research Report
  • [Presentation] GaAs/AlAs多重量子井戸中におけるコヒーレントLOフォノンからのTHz電磁波のコヒーレント制御2009

    • Author(s)
      大畠悟郎, 神澤悠輔, 齋藤伸吾, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-28
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 室温におけるGaAs/AlAs多重量子井戸中のコヒーレントLOフォノンからのTHz電磁波の強度2008

    • Author(s)
      神澤悠輔
    • Organizer
      物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] GaAs/AlAs超格子におけるシュタルク階段状態特有の重い正孔-軽い正孔励起子量子ビート2008

    • Author(s)
      長谷川尊之, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-20
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Pump-energy dependence of usual and unusual Bloch oscillations in a GaAs/AlAs superlattice2008

    • Author(s)
      Takayuki Hasegawa
    • Organizer
      8th International Conference on Excitonic Processes in Condensed Matter
    • Place of Presentation
      京都大学
    • Year and Date
      2008-06-24
    • Related Report
      2008 Annual Research Report
  • [Presentation] Terahertz wave from coherent LO phonon in a GaAs/AlAs multiple quantum well under an electric field2008

    • Author(s)
      K.Mizoguchi, Y.Kanzawa, M.Nakayama, S.Saito, K.Sakai
    • Organizer
      XVI International Conference on Ultrafast Phenomena
    • Place of Presentation
      Stresa, Italy
    • Year and Date
      2008-06-12
    • Related Report
      2008 Final Research Report
  • [Presentation] Terahertz wave from coherent LO phonon in a GaAs/AlAs multiple quantum well under an electric field2008

    • Author(s)
      Kohji Mizoguchi
    • Organizer
      16th International Conference on Ultrafast Phenomena
    • Place of Presentation
      Stresa, Italy
    • Year and Date
      2008-06-12
    • Related Report
      2008 Annual Research Report
  • [Presentation] aAs/AlAs超格子に埋め込まれた単一量子井戸における量子ビートに対する電場効果2008

    • Author(s)
      長谷川尊之, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-25
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs超格子に埋め込まれた単一量子井戸における量子ビートに対する電場効果2008

    • Author(s)
      長谷川 尊之
    • Organizer
      物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] Interactions between coherent optical phonons and excitonic quantum beats in GaAs/AlAs multiple quantum wells : strategy for enhancement of terahertz radiation from coherent optical phonons2007

    • Author(s)
      M.Nakayama and K.Mizoguchi
    • Organizer
      34th International Symposium on Compound Semiconductors
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-10-16
    • Related Report
      2008 Final Research Report
  • [Presentation] Interactions between coherent optical phonons and excitonic quantum beats in GaAs/AlAs multiple quantum wells;strategy for enhancement of terahertz radiation from coherent optical phonons(invited)2007

    • Author(s)
      M.Nakayama
    • Organizer
      34th International Symposium on Compound Semiconductors
    • Place of Presentation
      京都大学
    • Year and Date
      2007-10-16
    • Related Report
      2007 Annual Research Report
  • [Presentation] 電場印加によるGaAs/AlAs多重量子井戸中のコヒーレントLOフォノンからのテラヘルツ電磁波の増強2007

    • Author(s)
      神澤悠輔, 溝口幸司, 齋藤伸吾, 阪井清美, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-23
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs超格子における弱局在条件でのブロッホ振動2007

    • Author(s)
      長谷川尊之, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs超格子における弱局在条件でのプロッホ振動2007

    • Author(s)
      長谷川 尊之
    • Organizer
      物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] Observation of the second- nearest neighbor Bloch oscillation in a GaAs/AlAs superlattice2007

    • Author(s)
      T.Hasegawa, K.Mizoguchi, and M.Nakayama
    • Organizer
      15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors
    • Place of Presentation
      Tokyo
    • Year and Date
      2007-07-25
    • Related Report
      2008 Final Research Report
  • [Presentation] Observation of the second-nearest-neighbor Bloch oscillation in a GaAs/AlAs superlattice2007

    • Author(s)
      T.Hasegawa
    • Organizer
      15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors
    • Place of Presentation
      東京大学
    • Year and Date
      2007-07-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] Enhancement of terahertz radiation from coherent optical phonons via impulsive interference of excitons in GaAs/AlAs multiple quantum wells2007

    • Author(s)
      M.Nakayama
    • Organizer
      16th International Conference on Dynamical Processes in Excited states of Solids
    • Place of Presentation
      Segovia,Spain
    • Year and Date
      2007-06-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] Enhancement of terahertz radiation from coherent optical phonons via impulsive interference of excitons in GaAs/AlAs multiple quantum wells2007

    • Author(s)
      M.Nakayama, S.Itoh, K.Mizoguchi, S.Saito, K.Akahane, N.Yamamotoc, and K.Sakai
    • Organizer
      16th International Conference on Dynamical Processes in Excited States of Solids
    • Place of Presentation
      Segovia, Spain
    • Year and Date
      2007-06-19
    • Related Report
      2008 Final Research Report
  • [Presentation] 室温におけるGaAs/AlAs多重量子井戸中のコヒーレントLOフォノンからのTHz電磁波発生2007

    • Author(s)
      伊藤修一, 溝口幸司, 山本直克, 赤羽浩一, 斎藤伸吾, 東海林篤, 阪井清美, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-19
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs多重量子井戸構造における電場下での励起子量子ビートとコヒーレント縦光学フォノンの結合2007

    • Author(s)
      悦田祥平, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-19
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs超格子におけるミニバンド状態励起子量子ビートからブロッホ振動への移行過程2007

    • Author(s)
      長谷川尊之, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-19
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs多重量子井戸におけるコヒーレントLOフォノンからのテラヘルツ電磁波の電場依存性2006

    • Author(s)
      溝口幸司, 水元章裕, 中山正昭, 齋藤伸吾, 東海林篤, 阪井清美, 山本直克, 赤羽浩一
    • Organizer
      物理学会
    • Place of Presentation
      千葉大学
    • Year and Date
      2006-09-26
    • Related Report
      2008 Final Research Report
  • [Presentation] 励起子量子ビートによるコヒーレント光学フォノン制御 : THz電磁波増幅の可能性2006

    • Author(s)
      中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      千葉大学
    • Year and Date
      2006-09-24
    • Related Report
      2008 Final Research Report
  • [Presentation] GaAs/AlAs超格子におけるミニバンド状態励起子量子ビート2006

    • Author(s)
      長谷川尊之, 溝口幸司, 中山正昭
    • Organizer
      物理学会
    • Place of Presentation
      千葉大学
    • Year and Date
      2006-09-24
    • Related Report
      2008 Final Research Report
  • [Presentation] Terahertz radiation from coherent confined optical phonons in GaAs/AlAs multiple quantum wells2006

    • Author(s)
      M.Nakayama, K.Mizoguchi, O.Kojima, T.Furuichi, A.Mizumoto, S.Saito, A.Shouji, and K.Sakai
    • Organizer
      International Conference on Superlattices, Nano-structures and Nano-devices
    • Place of Presentation
      Istanbul, Turkey
    • Year and Date
      2006-08-01
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2020-05-15  

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