赤外線レーザーの付加による原子・分子高速過程の制御の理論研究

2015 Fiscal Year Annual Research Report

• Project/Area Number: 24540421
• Research Institution: University of Tsukuba
• Principal Investigator: トン ショウミン 筑波大学, 数理物質系, 准教授 (80422210)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 強レーザー / 制御方法 / 原子・分子 / 電離過程

Outline of Annual Research Achievements

(1) 強レーザー場における動的過程について擬ポテンシャルの適用性を調べた。完全密度汎関数法による計算結果と擬ポテンシャルで得られた結果を比べて、擬ポテンシャルの適用範囲を明らかにした。(2) 赤外線強レーザーによるアト秒レーザーでAr原子の２重電離について、我々の理論計算と共同実験で産出量の制御方法を探索した。特に二つのメカニズム（共鳴、非共鳴過程）を明らかにした。(3) 赤外線強レーザーによるHe原子吸収スペクトルの制御方法や原子構造を得る方法を探索した。長い時間遅延で原子構造の詳細を得ることを明らかにした。

Research Products

• [Journal Article] Attosecond Quantum-Beat Spectroscopy in Helium (2016)
  • Author(s): N Shivaram, XM Tong, H Timmers and A Sandhu
  • Journal Title: J. Phys. B: At. Mol. Opt. Volume: 49 Pages: 055601:1-7
  • DOI: 10.1088/0953-4075/49/5/055601
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Coherent control of D2/H2 dissociative ionization by a mid-infrared two-color laser field (2016)
  • Author(s): V Wanie, H Ibrahim,S Beaulieu, N Thire, B Schmidt, DY Peng, AS Alnaser, I Litvinyuk, XM Tong, F Legare
  • Journal Title: J. Phys. B: At. Mol. Opt. Volume: 49 Pages: 025601:1-9
  • DOI: 10.1088/0953-4075/49/2/025601
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Intensity dependence of the dissociative ionization of DCl in few-cycle laser fields (2016)
  • Author(s): H Li, XM Tong, N Schirmel, G Urbasch, KJ Betsch, S. Zherebtsov, F Sussmann, A Kessel, SA Trushin, GG Paulus, KM Weitzel, MF Kling
  • Journal Title: J. Phys. B: At. Mol. Opt. Volume: 49 Pages: 015601:1-8
  • DOI: doi:10.1088/0953-4075/49/1/015601
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Attosecond Coherent Control of Single and Double Photoionization in Argon (2015)
  • Author(s): CW Hogle, XM Tong, L Martin, MM Murnane, HC Kapteyn, P Ranitovic
  • Journal Title: Physical Review Letters Volume: 115 Pages: 173004:1-5
  • DOI: 10.1103/PhysRevLett.115.173004
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Protocol for observing molecular dipole excitations by attosecond self-streaking (2015)
  • Author(s): G Wachter, S Nagele, SA Sato, R Pazourek, M Wais, C Lemell, XM Tong, K Yabana, and J Burgdorfer
  • Journal Title: Physical Review A Volume: 92 Pages: 061403(R):1-5
  • DOI: 10.1103/PhysRevA.92.061403
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Application of norm-conserving pseudopotentials to intense laser-matter interactions (2015)
  • Author(s): XM Tong, G Wachter, SA Sato, C Lemell, K Yabana, and J Burgdorfer
  • Journal Title: Physical Review A Volume: 92 Pages: 043433:1-9
  • DOI: 10.1103/PhysRevA.92.043422
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Mechanism of dominance of the Breit interaction in dielectronic recombination (2015)
  • Author(s): XM Tong, ZM Hu, YM Li, XY Han, D Kato, H Watanabe and N Nakamura
  • Journal Title: J. Phys. B: At. Mol. Opt. Volume: 48 Pages: 144002:1-6
  • DOI: 10.1088/0953-4075/48/14/144002
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Steering the electron motion by two counter-rotating circularly polarized short intense laser pulses (2015)
  • Author(s): XM Tong and N Toshima
  • Organizer: XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015)
  • Place of Presentation: Congress Centre- EI Greco, Toledo, Spain
  • Year and Date: 2015-07-22 – 2015-07-30
  • Int'l Joint Research
• [Presentation] Origins of Very-Low and Zero-Energy Electron Structures in Strong-Field Ionization with Intense Mid-IR Pulses (2015)
  • Author(s): B Wolter, C Lemell, M Baudisch, MG Pullen, XM Tong, M Hemmer, A Senftleben, M Sclafani, CD Schroter, J Ullrich, R Moshammer, J Burgdorfer, J Biegert,
  • Organizer: XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015)
  • Place of Presentation: Congress Centre- EI Greco, Toledo, Spain
  • Year and Date: 2015-07-22 – 2015-07-30
  • Int'l Joint Research
• [Presentation] Mapping ultrafast dynamics of highly excited D2+ by ultrashort XUV pump - IR probe radiation (2015)
  • Author(s): R Bello, LS Martin, CW Hogle, A Palacios, JL Sanz-Vicario, XM Tong, F Martin, M Murnane, HC Kapteyn, P Ranitovic
  • Organizer: XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015)
  • Place of Presentation: Congress Centre- EI Greco, Toledo, Spain
  • Year and Date: 2015-07-22 – 2015-07-30
  • Int'l Joint Research
• [Presentation] Quantum beats in attosecond time-resolved autoionization ofnkrypton (2015)
  • Author(s): Y Cheng, M Chini, XM Tong, A Chew, J Biedermann, Y Wu, E Cunningham ZH Chang
  • Organizer: APS Division of Atomic and Molecular Physics Meeting 2015
  • Place of Presentation: Hyatt Regency, Columbus, OH, USA
  • Year and Date: 2015-06-08 – 2015-06-12
• [Presentation] Control of Attosecond Electron Diffraction by Elliptical Long-Wavelength Radiation (2015)
  • Author(s): P Ranitovic, XM Tong, D Hickstein, MM Margaret, H Kapteyn
  • Organizer: APS Division of Atomic and Molecular Physics Meeting 2015
  • Place of Presentation: Hyatt Regency, Columbus, OH, USA
  • Year and Date: 2015-06-08 – 2015-06-12