Precise Control of the Recollision Dynamics in Nonsequential Double Ionization by Spatially Inhomogeneous Few-Cycle Negatively Chirped Laser Pulses

被引：0

作者：

Li, Yingbin ^{[1
]}

Wu, Fengrun ^{[1
]}

Liu, Fanfei ^{[1
]}

Kang, Shuaijie ^{[1
]}

Li, Zhengfa ^{[1
]}

Zhang, Ke ^{[1
]}

Liu, Yifan ^{[1
]}

Li, Kuo ^{[1
]}

Zhai, Chunyang ^{[1
]}

Xu, Jingkun ^{[1
]}

Wang, Pu ^{[1
]}

Zhao, Qiming ^{[1
]}

Yu, Benhai ^{[1
]}

机构：

[1] Xinyang Normal Univ, Coll Phys & Elect Engn, Xinyang 464000, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2025年 / 42卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ABOVE-THRESHOLD IONIZATION; FIELD;

D O I：

10.1088/0256-307X/42/5/053703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

With a three-dimensional semiclassical ensemble method, we theoretically investigated the nonsequential double ionization of Ar driven by the spatially inhomogeneous few-cycle negatively chirped laser pulses. Our results show that the recollision time window can be precisely controlled within an isolated time interval of several hundred attoseconds, which is useful for understanding the subcycle correlated electron dynamics. More interestingly, the correlated electron momentum distribution (CEMD) exhibits a strong dependence on laser intensity. That is, at lower laser intensity, CEMD is located in the first quadrant. As the laser intensity increases, CEMD shifts almost completely to the second and fourth quadrants, and then gradually to the third quadrant. The underlying physics governing the CEMD's dependence on laser intensity is explained.

引用

页数：7

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