Angular distribution of ions and extreme ultraviolet emission in laser-produced tin droplet plasma

被引：18

作者：

Chen, Hong ^{[1
,2
]}

Wang, Xinbing ^{[2
]}

Duan, Lian ^{[1
,2
]}

Lan, Hui ^{[1
,2
]}

Chen, Ziqi ^{[2
]}

Zuo, Duluo ^{[2
]}

Lu, Peixiang ^{[3
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[3] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 19期

基金：

中国国家自然科学基金;

关键词：

ABLATION; NONEQUILIBRIUM; DEPOSITION; EXPANSION; DYNAMICS; FILMS; MODEL; SN;

D O I：

10.1063/1.4921532

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Angular-resolved ion time-of-flight spectra as well as extreme ultraviolet radiation in laser-produced tin droplet plasma are investigated experimentally and theoretically. Tin droplets with a diameter of 150 mu m are irradiated by a pulsed Nd:YAG laser. The ion time-of-flight spectra measured from the plasma formed by laser irradiation of the tin droplets are interpreted in terms of a theoretical elliptical Druyvesteyn distribution to deduce ion density distributions including kinetic temperatures of the plasma. The opacity of the plasma for extreme ultraviolet radiation is calculated based on the deduced ion densities and temperatures, and the angular distribution of extreme ultraviolet radiation is expressed as a function of the opacity using the Beer-Lambert law. Our results show that the calculated angular distribution of extreme ultraviolet radiation is in satisfactory agreement with the experimental data. (C) 2015 AIP Publishing LLC.

引用

页数：6

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