Study on the attosecond multi-level tunnel ionization processes that form an electron wavepacket.
Project/Area Number |
25247069
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Atomic/Molecular/Quantum electronics
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Research Institution | Waseda University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
Morishita Toru 電気通信大学, 情報理工学(系)研究科, 准教授 (20313405)
IWAKURA Izumi 神奈川大学, 工学部, 准教授 (40517083)
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Co-Investigator(Renkei-kenkyūsha) |
Madesen L. B. Aarhus University
Tolstikhin O. I. Moscow institute of physics and technology
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥45,890,000 (Direct Cost: ¥35,300,000、Indirect Cost: ¥10,590,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥36,660,000 (Direct Cost: ¥28,200,000、Indirect Cost: ¥8,460,000)
|
Keywords | トンネルイオン化 / アト秒科学 / 高次高調波 / 再衝突電子 / アト秒イオン化 / アト秒高次高調波 / トンネルイオン化過程 / 数サイクルパルス / 極端紫外光 / 分子軌道イメージング / 分子動力学 / 分子軌道 |
Outline of Final Research Achievements |
We have developed the experimental and theoretical approaches to study the multi-level tunnel ionization process induced by intense, laser pulses. First, we have measured the two-dimensional high-harmonic spectra emitted from aligned molecules using two-color intense laser pulses. By controlling the alignment angle, we control the contribution of the levels that are related to the tunnel ionization and high-harmonic generation. Next, using the attosecond high-harmonics combined with the intense laser pulse, we have explored that a particular ionization channel is predominantly selected, that allows us to observe an phase-resolved electron wavefunction image with attosecond time-resolution. We have also developed the theoretical treatments regarding to the multi-level tunnel ionization process that includes the multi-electron effect.
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Report
(5 results)
Research Products
(37 results)
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[Journal Article] Numerical simulation of the double-to-single ionization ratio for the helium atom in strong laser fields2015
Author(s)
Z. Chen, Y. Zheng, W. Yang, X. Song, J. Xu, L. F. DiMauro, O. Zatsarinny, K. Bartschat, T. Morishita, S.-F. Zhao, and C. D. Lin
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Journal Title
Phys. Rev. A
Volume: 92
Issue: 6
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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