Dense electron-positron plasmas and gamma-ray bursts generation by counter-propagating quantum electrodynamics-strong laser interaction with solid targets

被引：54

作者：

Luo, Wen ^{[1
,2
]}

Zhu, Yi-Bo ^{[1
]}

Zhuo, Hong-Bin ^{[3
,4
]}

Ma, Yan-Yun ^{[3
,4
]}

Song, Ying-Ming ^{[1
]}

Zhu, Zhi-Chao ^{[1
]}

Wang, Xiao-Dong ^{[1
]}

Li, Xing-Huo ^{[3
]}

Turcu, I. C. E. ^{[2
]}

Chen, Min ^{[4
,5
,6
]}

机构：

[1] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China

[2] Horia Hulubei Natl Inst R&D Phys & Nucl Engn IFIN, Extreme Light Infrastruct Nucl Phys ELI NP, RO-077125 Bucharest, Jud Ilfov, Romania

[3] Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China

[4] Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China

[5] Shanghai Jiao Tong Univ, Minist Educ, Key Lab Laser Plasmas, Shanghai 200240, Peoples R China

[6] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China

来源：

PHYSICS OF PLASMAS | 2015年 / 22卷 / 06期

基金：

中国国家自然科学基金;

关键词：

THOMSON SCATTERING; PAIR PRODUCTION; DRIVEN; ABSORPTION; PHYSICS; FIELD;

D O I：

10.1063/1.4923265

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：

We use quantum electrodynamics (QED) particle-in-cell simulations to investigate and compare the generation of dense electron-positron plasmas and intense c-ray bursts in the case of counter-propagating laser solid interaction (two-side irradiation) and single laser solid interaction (one-side irradiation). In the case of counter-propagating linearly polarized laser pulses irradiating a thin aluminum foil with each pulse peak power of 12.5 PW (I = 4 x 10(23) W/cm(2)), we calculate that about 20% of the laser energy is converted into a burst of gamma-rays with flux exceeding 10(14) s(-1) This would be one of the most intense c-ray sources among those currently available in laboratories. The c-ray conversion efficiency in the case of two-side irradiation is three times higher than in the case of one-side irradiation using a single 12.5 PW laser. Dense electron-positron plasma with a maximum density of 6 x 10(27) m(-3) are generated simultaneously during the two-side irradiation which is eightfold denser compared to the one-side irradiation. The enhancement of the effects in the case of counter-propagating lasers are the results of the symmetrical compression of the foil target and the formation of electric potential and standing wave around the target. Realizing experimentally the proposed counter-propagating QED-strong laser-solid interaction to produce dense electron-positron pairs and prolific c-rays will be made possible by the Extreme Light Infrastructure-Nuclear Physics facility under construction. (C) 2015 AIP Publishing LLC.

引用

页数：7