Electron acceleration by tightly focused radially polarized few-cycle laser pulses

doi:10.1088/1674-1056/21/2/024101

中国物理B ›› 2012, Vol. 21 ›› Issue (2): 24101-024101.doi: 10.1088/1674-1056/21/2/024101

刘晋陆,盛政明,郑君

收稿日期:2011-05-10 修回日期:2011-08-19 出版日期:2012-01-30 发布日期:2012-01-30
通讯作者: 盛政明,zmsheng@sjtu.edu.cn E-mail:zmsheng@sjtu.edu.cn

Electron acceleration by tightly focused radially polarized few-cycle laser pulses

Liu Jin-Lu(刘晋陆), Sheng Zheng-Ming(盛政明)^†, and Zheng Jun(郑君)

Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2011-05-10 Revised:2011-08-19 Online:2012-01-30 Published:2012-01-30
Contact: Sheng Zheng-Ming,zmsheng@sjtu.edu.cn E-mail:zmsheng@sjtu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10734130, 10935002, and 11075105) and the National Basic Research Program of China (Grant No. 2009GB105002).

摘要/Abstract

Abstract: Within the framework of plane-wave angular spectrum analysis of the electromagnetic field structure, a solution valid for tightly focused radially polarized few-cycle laser pulses propagating in vacuum is presented. The resulting field distribution is significantly different from that based on the paraxial approximation for pulses with either small or large beam diameters. We compare the electron accelerations obtained with the two solutions and find that the energy gain obtained with our new solution is usually much larger than that with the paraxial approximation solution.

Key words: radially polarized laser pulses, few-cycle pulses, plane-wave angular spectrum analysis, direct laser acceleration of electrons

中图分类号: (Laser-driven acceleration?)

41.75.Jv

42.25.Bs (Wave propagation, transmission and absorption)

刘晋陆,盛政明,郑君. [J]. 中国物理B, 2012, 21(2): 24101-024101.

Liu Jin-Lu(刘晋陆), Sheng Zheng-Ming(盛政明), and Zheng Jun(郑君) . Electron acceleration by tightly focused radially polarized few-cycle laser pulses[J]. Chin. Phys. B, 2012, 21(2): 24101-024101.

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Electron acceleration by tightly focused radially polarized few-cycle laser pulses

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