Theoretical study on attosecond and femtosecond atomic photoionization

• Project/Area Number: 25286064
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Optical engineering, Photon science
• Research Institution: The University of Tokyo
• Principal Investigator: Ishikawa Kenichi 東京大学, 工学(系)研究科(研究院), 教授 (70344025)
• Co-Investigator(Kenkyū-buntansha): SATO Takeshi 東京大学, 大学院工学系研究科, 特任講師 (30507091)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: アト秒科学 / 極紫外自由電子レーザー / 第一原理計算

Outline of Final Research Achievements

Using direct simulation of the time-dependent Schrodinger equation, we have studied the progress of photoionization and the interplay between different ionization paths. Upon inner-shell ionization, “Attosecond knock-up”, where the outgoing continuum electron collides with the remaining outer electron, depends on pulse polarization. Upon near-threshold EUV+IR two-photon ionization, the competition between resonant and nonresonant paths leads to striking pulse-delay dependence of photoelectron angular distribution. Thus, out study has revealed various possibilities to control photoionization processes.

Research Products

• [Int'l Joint Research] トリエステ・エレットラ・シンクロトロン/ミラノ工科大学/CNR(イタリア)
• [Int'l Joint Research] オーストラリア国立大学/スインバン大学(オーストラリア)
• [Int'l Joint Research] ドレイク大学(米国)
• [Int'l Joint Research] モスクワ大学(ロシア連邦)
• [Journal Article] mplementation of the multiconfiguration time-dependent Hartree-Fock method for general molecules on a multi-resolution Cartesian grid (2016)
  • Author(s): R. Sawada, T. Sato, and K. L. Ishikawa
  • Journal Title: Phys. Rev. A Volume: 93
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Review on Ab Initio Approaches for Multielectron Dynamics (2015)
  • Author(s): K. L. Ishikawa and T. Sato
  • Journal Title: IEEE J. Sel. Topics Quantum Electron. Volume: 21 Pages: 1-1
  • DOI: 10.1109/jstqe.2015.2438827
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Propagating two-particle reduced density matrices without wavefunctions (2015)
  • Author(s): F. Lackner, I. Břesinová, T. Sato, K. L. Ishikawa, and J. Burgdörfer
  • Journal Title: Phys. Rev. A Volume: 91 Issue: 2
  • DOI: 10.1103/physreva.91.023412
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] ime-dependent multiconfiguration self-consistent-field method based on occupation restricted multiple active space model for multielectron dynamics in intense laser fields (2015)
  • Author(s): T. Sato and K. L. Ishikawa
  • Journal Title: Phys. Rev. A Volume: 91 Issue: 2
  • DOI: 10.1103/physreva.91.023417
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The structure of approximate two electron wavefunction in intense laser driven ionization dynamics (2014)
  • Author(s): T. Sato and K. L. Ishikawa
  • Journal Title: J. Phys. B Volume: 47 Issue: 20 Pages: 204031-204031
  • DOI: 10.1088/0953-4075/47/20/204031
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Theoretical study of pulse delay effects in the photoelectron angular distribution of near-threshold EUV+IR two-photon ionization of atoms (2014)
  • Author(s): K. L. Ishikawa, A. K. Kazansky, N. M. Kabachnik, and K. Ueda
  • Journal Title: Phys. Rev. A Volume: 90 Issue: 2
  • DOI: 10.1103/physreva.90.023408
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Ryohto Sawada, Takeshi Sato, and Kenichi L. Ishikawa (2014)
  • Author(s): Ryohto Sawada, Takeshi Sato, and Kenichi L. Ishikawa
  • Journal Title: Physical Review A Volume: 90 Issue: 2 Pages: 023404-023404
  • DOI: 10.1103/physreva.90.023404
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Pulse delay effect in angular distribution of near-threshold EUV+IR two-photon ionization of Ne (2014)
  • Author(s): S. Mondal, H. Fukuzawa, K. Motomura, T. Tachibana, K. Nagaya, T. Sakai, K. Matsunami, S. Yase, M. Yao, S. Wada, H. Hayashita, N. Saito, C. Callegari, K. C. Prince, C. Miron, M. Nagasono, T. Togashi, M. Yabashi, K. L. Ishikawa, A. K. Kazansky, N. M. Kabachnik, and K. Ueda
  • Journal Title: Phys. Rev. A Volume: 89 Issue: 1
  • DOI: 10.1103/physreva.89.013415
  • Peer Reviewed
• [Journal Article] Photoelectron angular distributions in infrared one-photon and two-photon ionization of FEL-pumped Rydberg states of helium (2013)
  • Author(s): S. Mondal, H. Fukuzawa, K. Motomura, T. Tachibana, ..., K. L. Ishikawa et al.
  • Journal Title: J. Phys. B Volume: 46 Issue: 20 Pages: 205601-205601
  • DOI: 10.1088/0953-4075/46/20/205601
  • Peer Reviewed
• [Presentation] フェムト秒極紫外レーザーパルスによる希ガス原子の2光子イオン化 (2016)
  • Author(s): 石川顕一、上田潔、Nikolay Kabachnik, and Andrey Kazansky
  • Organizer: 電気学会 光・量子デバイス研究会
  • Place of Presentation: 氷見市ふれあいスポーツセンター（富山県氷見市）
  • Year and Date: 2016-01-24
• [Presentation] Two-photon ionization of atoms in ultrashort extreme-ultraviolet laser fields (2015)
  • Author(s): Kenichi L. Ishikawa, Nikolay M. Kabachnik, Andrey K. Kazansky, and Kiyoshi Ueda
  • Organizer: XXIX International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC2015)
  • Place of Presentation: Toledo, Spain
  • Year and Date: 2015-07-22
  • Int'l Joint Research / Invited
• [Presentation] Two-photon ionization: direct or stepwise, that's the question (2014)
  • Author(s): K. L. Ishikawa
  • Organizer: Atomic and Molecular Physics: a joint Japanese and French view over 120 years (AMO120)
  • Place of Presentation: Cernay la Ville, France
  • Year and Date: 2014-07-21 – 2014-07-23
  • Invited
• [Presentation] Two-photon ionization of rare-gas atoms by femtosecond extreme-ultraviolet pulses (2014)
  • Author(s): K. L. Ishikawa
  • Organizer: International Conference on Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces (MPS2014)
  • Place of Presentation: Metz, France
  • Year and Date: 2014-07-16 – 2014-07-18
  • Invited
• [Presentation] 強レーザー場中の多電子ダイナミクスの第一原理シミュレーション (2014)
  • Author(s): 石川顕一、佐藤健、澤田亮人
  • Organizer: レーザー学会学術講演会第34回年次大会シンポジウム: 新しいコンセプトに基づく時短パルスレーザー
  • Place of Presentation: 北九州国際会議場、福岡県北九州市
  • Invited
• [Presentation] Multielectron Dynamics in Intense Laser Fields (2014)
  • Author(s): K. L. Ishikawa
  • Organizer: International Workshop on Theory for Attosecond Quantum Dynamics (IWTAQD) 10
  • Place of Presentation: The University of Electro-Communications, Tokyo, Japan
  • Invited
• [Presentation] 励起ヘリウム原子の内核電離のボーム経路解析 (2014)
  • Author(s): 澤田亮人、佐藤健、石川顕一
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学湘南キャンパス、神奈川県平塚市
• [Presentation] 強光子場によるレア・イベント制御に向けた、多電子ダイナミクスの第一原理計算 (2014)
  • Author(s): 石川顕一
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学湘南キャンパス、神奈川県平塚市
  • Invited
• [Presentation] Two-photon ionization by femtosecond laser pulses (2013)
  • Author(s): K. L. Ishikawa
  • Organizer: International Workshop on Theory for Attosecond Quantum Dynamics (IWTAQD) 9
  • Place of Presentation: University of Electro-Communication, Tokyo, Japan
  • Invited
• [Presentation] Correlation-Driven Electron Dynamics in Attosecond Photoionization of Helium (2013)
  • Author(s): K. L. Ishikawa et al.
  • Organizer: The 10th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) 2013
  • Place of Presentation: Kyoto International Conference Center, Kyoto, Japan
• [Presentation] Correlation-driven electron dynamics in attosecond photoionization of helium (2013)
  • Author(s): K. L. Ishikawa et al.
  • Organizer: 4th International Conference on Attosecond Physics (ATTO2013)
  • Place of Presentation: Paris, France
• [Presentation] Attosecond and Femtosecond Photoionization Dynamics of He (2013)
  • Author(s): K. L. Ishikawa
  • Organizer: Intense field, Short Wavelength Atomic and Molecular Processes-2 (ISWAMP 2013)
  • Place of Presentation: Grand Metropark Hotel, Xi'an, China
  • Invited
• [Presentation] 励起ヘリウム原子の内殻電離におけるアト秒電子相関とノックアップ現象 (II) (2013)
  • Author(s): 石川 顕一, Suren Sukiasyan, Misha Ivanov
  • Organizer: 第74回応用物理学会秋季学術講演会
  • Place of Presentation: 同志社大学京田辺キャンパス、京都府
• [Presentation] 高強度超短パルスレーザー場中の多電子ダイナミクス (2013)
  • Author(s): 石川顕一
  • Organizer: HPCI戦略プログラム分野2ｘ分野5異分野交流研究会
  • Place of Presentation: 自然科学研究機構分子科学研究所、愛知県岡崎市
  • Invited
• [Book] アト秒科学～1京分の1秒スケールの超高速現象を光で観測・制御する～ (2015)
  • Author(s): 大森賢治、石川顕一、石井順久、板谷治郎、香月浩之、森下亨、渡部俊太郎
  • Total Pages: 200
  • Publisher: 化学同人
• [Remarks] 東京大学 石川研究室の論文一覧
  • URL: http://www.atto.t.u-tokyo.ac.jp/report/list/
• [Remarks] 論文リスト
  • URL: http://ishiken.free.fr/publication.html