期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.043002
关键词
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资金
- National Basic Research Program of China [2013CB9222001, 2011CB8081002]
- NNSF of China [10925420, 10904162, 11074026, 11174330, 11134010, 11274050]
We demonstrate the significant role of long quantum orbits in strong-field atomic processes by investigating experimentally and theoretically the above-threshold ionization spectra of noble gases in intense elliptically polarized laser pulses. With increasing laser ellipticity, the yields of different energy regions of the measured electron spectrum in high-order above-threshold ionization drop at different rates. The experimental features can be reproduced by a theoretical simulation based on quantum-orbit theory, revealing that increasing ellipticity favors the contributions of the long quantum orbits in the high-order above-threshold ionization process. DOI: 10.1103/PhysRevLett.110.043002
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