Efficient guiding and focusing of intense laser pulse using periodic thin slits

被引：1
|
作者：
Xu, L. [1 ,2 ]
Huang, T. W. [1 ,2 ]
Jiang, K. [1 ,2 ]
Wu, C. N. [1 ,2 ]
Peng, H. [1 ,2 ]
Chen, P. [1 ,2 ]
Li, R. [1 ,2 ]
Zhuo, H. B. [1 ,2 ]
Zhou, C. T. [1 ,2 ]
机构：
[1] Shenzhen Technol Univ, Ctr Intense Laser ApplicationTechnol, Shenzhen Key Lab Ultraintense Laser & Adv Mat Tech, Shenzhen 518118, Peoples R China
[2] Shenzhen Technol Univ, Coll Engn Phys, Shenzhen 518118, Peoples R China
来源：
MATTER AND RADIATION AT EXTREMES | 2024年 / 9卷 / 04期
基金：
中国国家自然科学基金; 国家重点研发计划; 英国工程与自然科学研究理事会;
关键词：
BEAMS;
D O I：
10.1063/5.0192396
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Slits have been widely used in laser-plasma interactions as plasma optical components for generating high-harmonic light and controlling laser-driven particle beams. Here, we propose and demonstrate that periodic thin slits can be regarded as a new breed of optical elements for efficient focusing and guiding of intense laser pulse. The fundamental physics of intense laser interaction with thin slits is studied, and it is revealed that relativistic effects can lead to enhanced laser focusing far beyond the pure diffractive focusing regime. In addition, the interaction of an intense laser pulse with periodic thin slits makes it feasible to achieve multifold enhancement in both laser intensity and energy transfer efficiency compared with conventional waveguides. These results provide a novel method for manipulating ultra-intense laser pulses and should be of interest for many laser-based applications.
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页数：11
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