Role of potential on high-order harmonic generation from atoms irradiated by bichromatic counter-rotating circularly polarized laser fields

被引：0

作者：

申许许 ^{[1
]}

王俊 ^{[2
]}

郭福明 ^{[2
]}

陈基根 ^{[3
]}

杨玉军 ^{[2
]}

机构：

[1] Institute of Atomic and Molecular Physics, Jilin University

[2] Institute of Atomic and Molecular Physics ,Jilin University

[3] Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University

来源：

Chinese Physics B | 2020年 / 29卷 / 08期

关键词：

D O I：

暂无

中图分类号：

TN24 [激光技术、微波激射技术]; O436.3 [偏振与色散];

学科分类号：

0803 ; 080401 ; 080901 ; 070207 ;

摘要：

We investigate high-order harmonic generation from atoms irradiated by bichromatic counter-rotating circularly polarized laser pulses by numerically solving the time-dependent Schr ¨odinger equation. It is found that the minimum energy position of the harmonic spectrum and the non-integer order optical radiation are greatly discrepant for different atomic potentials. By analyzing the quantum trajectory of the harmonic emission, discrepancies among the harmonic spectra from different potentials can be attributed to the action of the potential on the ionized electrons. In addition, based on the influence of the driving light intensity on the overall intensity and ellipticity of higher order harmonics, the physical conditions for generating a high-intensity circularly polarized harmonic can be obtained.

引用

页码：248 / 253

页数：6

共 6 条

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