Near-circularly polarized attosecond pulse generation from nitrogen molecules in co-rotating two-color circularly polarized laser fields

被引：0

作者：

Xing, Yun-He ^{[1
]}

He, Mei-Lian ^{[1
]}

Chen, Huan ^{[1
]}

Wang, Meng-Yue ^{[1
]}

Cheng, Cong-Cong ^{[1
]}

Wang, Shuang ^{[1
]}

Zhang, Jun ^{[1
]}

Liu, Xue-Shen ^{[1
]}

机构：

[1] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China

来源：

OPTICS LETTERS | 2025年 / 50卷 / 10期

基金：

中国国家自然科学基金;

关键词：

HARMONIC-GENERATION; ELLIPTICITY;

D O I：

10.1364/OL.560566

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate theoretically the generation of a nearcircularly polarized attosecond pulse from the N2 molecules driven by co-rotating two-color circularly polarized (CTCP) laser fields by numerically solving the two-dimensional timedependent Schr & ouml;dinger equation. At the frequency ratio 3, the harmonics with large ellipticity can be obtained. Moreover, the intensity and ellipticity of the harmonics are not sensitive to the alignment angle of the N2 molecules in CTCP laser fields. By adjusting the intensity ratio of CTCP laser fields with a frequency ratio of 3, an attosecond pulse with an ellipticity of 0.94 can be obtained. (c) 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

引用

页码：3154 / 3157

页数：4

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