期刊
OPTICS LETTERS
卷 41, 期 4, 页码 697-700出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.41.000697
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资金
- National Natural Science Foundation of China (NSFC) [11404153, 11135002, 11405077, 11475076]
Photoelectron angular momentum distribution of He+ driven by a few-cycle laser is investigated numerically. We simultaneously observe two dominant interference patterns with one shot of lasers by solving the 3D time-dependent Schrodinger equation. Analysis of a semiclassical model identifies these two interference patterns as two types of photoelectron holography. The interference pattern with P-z > 0 is a type of forward rescattering holography, which comes from the interference between direct (reference) and rescattered (signal) forward electrons ionized in the same quarter-cycle. The interference pattern with P-z < 0 is a type of backward rescattering holography, which comes from the interference between a direct electron ionized in the third quarter-cycle and rescattered backward electron ionized in the first quarter-cycle. Moreover, we propose a method to distinguish this backward rescattering holography and intracycle interference patterns of direct electrons. (C) 2016 Optical Society of America
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