High-efficiency water-window x-ray generation from nanowire array targets irradiated with femtosecond laser pulses

被引：14

作者：

Shou, Yinren ^{[1
,2
]}

Kong, Defeng ^{[1
,2
]}

Wang, Pengjie ^{[1
,2
]}

Mei, Zhusong ^{[1
,2
]}

Cao, Zhengxuan ^{[1
,2
]}

Pan, Zhuo ^{[1
,2
]}

Li, Yunhui ^{[3
]}

Xu, Shirui ^{[1
,2
]}

Qi, Guijun ^{[1
,2
]}

Chen, Shiyou ^{[1
,2
]}

Zhao, Jiarui ^{[1
,2
]}

Zhao, Yanying ^{[1
,2
]}

Fu, Changbo ^{[4
]}

Luo, Wen ^{[5
]}

Zhang, Guoqiang ^{[6
]}

Yan, Xueqing ^{[1
,2
,7
,8
]}

Ma, Wenjun ^{[1
,2
,7
,8
]}

机构：

[1] Peking Univ, Minist Educ, CAPT, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[2] Peking Univ, Minist Educ, CAPT, Key Lab HFDP, Beijing 100871, Peoples R China

[3] Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China

[4] Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China

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

[6] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[7] Beijing Laser Accelerat Innovat Ctr, Beijing 101400, Peoples R China

[8] Inst Guangdong Laser Plasma Technol, Guangzhou 510540, Peoples R China

来源：

OPTICS EXPRESS | 2021年 / 29卷 / 04期

基金：

中国国家自然科学基金;

关键词：

PLASMA; EMISSION;

D O I：

10.1364/OE.417512

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the high-efficiency generation of water-window soft x-ray emissions from polyethylene nanowire array targets irradiated by femtosecond laser pulses at the intensity of 4x10(19) W/cm(2). The experimental results indicate more than one order of magnitude enhancement of the water-window x-ray emissions from the nanowire array targets compared to the planar targets. The highest energy conversion efficiency from laser to water-window x-rays is measured as 0.5%/sr, which comes from the targets with the longest nanowires. Supported by particle-in-cell simulations and atomic kinetic codes, the physics that leads to the high conversion efficiency is discussed. (c) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：5427 / 5436

页数：10

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