Theoretical study on attosecond soft X-ray pulse generation and measurement

2008 Fiscal Year Final Research Report

• Project/Area Number: 19686006
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: The Institute of Physical and Chemical Research (2008); The University of Tokyo (2007)
• Principal Investigator: ISHIKAWA Kenichi The Institute of Physical and Chemical Research, 臓器全身スケール研究開発チーム, 上級研究員 (70344025)
• Project Period (FY): 2007 – 2008
• Keywords: 高性能レーザー / 量子エレクトロニクス / 計算物理 / 高次高調波発生

Research Abstract

中赤外レーザーを用いたより短波長のアト秒パルス発生にとって重要な、高次高調波発生の基本波長依存性を、800〜2000nmの範囲について、時間依存シュレーディンガー方程式の直接シミュレーションによって研究した。高調波収量は、グローバルには波長のマイナス5乗程度でスケールすること、詳細に見ると10以上の量子経路の干渉により高調波収量ははげしく振動すること、極端紫外光パルスを付加すると波動関数の初期広がりなどの効果でスケーリングが大幅に緩やかになることなどの、重要な成果を挙げた。

Research Products

• [Journal Article] Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation : Connection with channel closings (2009)
  • Author(s): K. L. Ishikawa, K. Schiessl, E. Persson, J. Burgdorfer
  • Journal Title: Phys. Rev. A 79 Pages: 033411
  • Peer Reviewed
• [Journal Article] Coherent water window x-ray by phase-matched high-order harmonic generation in neutral media (2008)
  • Author(s): E. J. Takahashi, T. Kanai, K. L. Ishikawa, Y. Nabekawa, K. Midorikawa
  • Journal Title: Phys. Rev. Lett. 101 Pages: 253901
  • Peer Reviewed
• [Journal Article] Direct amplification of terawatt sub-10-fs pulses in a CPA system of Ti : sapphire laser (2008)
  • Author(s): A. A. Eilanlou, Y. Nabekawa, K. L. Ishikawa, H. Takahashi, K. Midorikawa
  • Journal Title: Opt. Express 16 Pages: 13431-13438
  • Peer Reviewed
• [Journal Article] Wavelength dependence of high-harmonic generation from ultrashort pulses (2008)
  • Author(s): K. Schiessl, K. L. Ishikawa, E. Persson, J. Burgdorfer
  • Journal Title: J. Mod. Opt. 55 Pages: 2617-2630
  • Peer Reviewed
• [Journal Article] アト秒現象の理論 (2008)
  • Author(s): 石川顕一
  • Journal Title: レーザー研究 36 Pages: 25-30
  • Peer Reviewed
• [Journal Article] Quantum path interference in the wavelength dependence of high-harmonic generation (2007)
  • Author(s): K. Schiessl, K. L. Ishikawa, E. Persson, J. Burgdorfer
  • Journal Title: Phys. Rev. Lett. 99 Pages: 253903
  • Peer Reviewed
• [Presentation] Wavelength-dependence of high-harmonic generation (2009)
  • Author(s): K. L. Ishikawa
  • Organizer: Ultra-Fast Dynamic Imaging of Matter II (UDIM09)
  • Place of Presentation: Ischia Island, Naples, Italy
  • Year and Date: 20090430-0503
• [Presentation] Atoms in ultrashort intense laser and XUV pulses (2009)
  • Author(s): K. L. Ishikawa
  • Organizer: 5th ADLIS (ADvanced Light Sources) Workshop
  • Place of Presentation: Munich, Germany
  • Year and Date: 20090302-04
• [Presentation] 高次高調波発生の波長依存性 (2009)
  • Author(s): 石川顕一, K. Schiessl, E. Persson, J. Burgdorfer
  • Organizer: レーザー学会学術講演会第29回年次大会
  • Place of Presentation: 徳島大学
  • Year and Date: 20090110-12
• [Presentation] Quantum path interference in the wavelength dependence of high-harmonic generation (2008)
  • Author(s): K. L. Ishikawa, K. Schiessl, E. Persson, J. Burgdorfer
  • Organizer: Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS) 2008, JFF5
  • Place of Presentation: San Jose, USA
  • Year and Date: 20080504-09
• [Presentation] Direct amplification of 12 fs pulses in a terawatt class CPA laser system (2008)
  • Author(s): A. A. Eilanlou, Y. Nabekawa, K. L. Ishikawa, H. Takahashi, K. Midorikawa
  • Organizer: Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS) 2008, JThB4
  • Place of Presentation: San Jose, USA
  • Year and Date: 20080504-09
• [Presentation] テラワット級サブ10 fsレーザーシステムの開発(III) (2008)
  • Author(s): アマニイランル, 鍋川康夫, 石川顕一, 高橋浩之, 緑川克美
  • 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: 20080327-30
• [Presentation] 高次高調波発生の波長依存性(2) (2008)
  • Author(s): 石川顕一, K. Schiessl, E. Persson, J. Burgdorder
  • 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: 20080327-30
• [Presentation] 高次高調波発生の波長・強度依存性 (2008)
  • Author(s): 石川顕一, K. Schiessl, E. Persson, J. Burgdorder
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学本部キャンパス
  • Year and Date: 20080322-26
• [Presentation] イオン化閾値近傍でのFROG-CRAB (2008)
  • Author(s): 石川 顕一, Fabien Quere
  • Organizer: レーザー学会学術講演会第28回年次大会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 20080130-0201
• [Presentation] Wavelength-dependence of high-harmonic generation (2008)
  • Author(s): K. L. Ishikawa
  • Organizer: 38th Winter Colloquium on The Physics of Quantum Electronics
  • Place of Presentation: Snowbird, Utah, USA
  • Year and Date: 20080106-10
• [Presentation] テラワット級サブ10 fsレーザーシステムの開発(II) (2007)
  • Author(s): アマニイランル, 鍋川康夫, 石川顕一, 高橋浩之, 緑川克美
  • Organizer: 2007秋季第68回応用物理学会学術講演会
  • Place of Presentation: 北海道工業大学
  • Year and Date: 20070904-08
• [Presentation] 高次高調波発生の波長依存性 (2007)
  • Author(s): 石川顕一, 高橋佑也
  • Organizer: 2007秋季第68回応用物理学会学術講演会
  • Place of Presentation: 北海道工業大学
  • Year and Date: 20070904-08
• [Presentation] Single attosecond pulse generation using a seed harmonic pulse train (2007)
  • Author(s): K. L. Ishikawa, E. J. Takahashi, K. Midorikawa
  • Organizer: European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/Europe-IQEC) 2007, CG3-5-TUE
  • Place of Presentation: Munich, Germany
  • Year and Date: 20070617-22
• [Presentation] Single attosecond pulse generation using a seed harmonic pulse train (2007)
  • Author(s): K. L. Ishikawa, E. J. Takahashi, K. Midorikawa
  • Organizer: Conference on Lasers and Electro-Optics (CLEO) 2007, JTuD3
  • Place of Presentation: Baltimore, USA
  • Year and Date: 20070506-11
• [Presentation] Dramatic enhancement of high-order harmonic generation (2007)
  • Author(s): K. L. Ishikawa, E. J. Takahashi
  • Organizer: 2nd Asian Workshop on Generation and Applications of Coherent XUV and X-ray Radiation (AWCXR)
  • Place of Presentation: Wako, Japan
  • Year and Date: 2007-06-01
• [Remarks]
  • URL: http://ishiken.free.fr