Enhanced proton acceleration from an ultrathin double-foil target with circularly polarized laser pulses

被引：0
|
作者：
Liu, Z. [1 ,2 ]
Zhao, M. K. [2 ,3 ]
Zhuang, J. Z. [1 ,2 ]
Peng, W. J. [2 ,3 ]
Sun, H. F. [2 ,4 ]
Chen, X. [2 ]
Zhang, Y. [2 ]
Zheng, Y. F. [5 ]
Shao, Y. C. [5 ]
Xu, Y. [2 ]
Leng, Y. X. [1 ,2 ]
Bin, J. H. [1 ,2 ]
Li, R. X. [2 ,4 ]
机构：
[1] Shanghai Univ, Sch Microelect, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, State Key Lab High Field Laser Phys, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[4] Shanghai Tech Univ, Shanghai 201210, Peoples R China
[5] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
来源：
PHYSICS OF PLASMAS | 2025年 / 32卷 / 03期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/5.0249281
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The generation of proton beams using ultrathin double-foil targets driven by circularly polarized laser pulses is explored experimentally. A significant increase up to 2.7 times in proton maximum energies is observed with respect to a typical single-foil target. The total number of protons was increased by a factor of 6. Two-dimensional particle-in-cell simulations agree with the experimental data and suggest that such an increase is attributable to a more pronounced radiation pressure acceleration process when the circularly polarized laser pulse propagates through the first nanometer thin foil and undergoes strong pulse shaping via relativistic nonlinearities.
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页数：5
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