| 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 |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Waseda University |
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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)
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| 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 |
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| 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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