强激光与粒子束2011，Vol.23Issue(5)：1290-1294,5.DOI:10.3788/HPLPB20112305.1290
超短超强激光与薄膜靶作用的光学光谱
Optical spectra from interaction between ultrashort ultraintense laser and foil targets
摘要
Abstract
The optical spectra from the interaction between a 30 fs, 1× 1019 W/cm2 laser pulse and foil targets on SILEX- Ⅰ are studied.Evident red shifts of the second and three-half harmonic emissions in the specular reflection direction are observed from a 3 μm thick copper target.The recession velocity at the reflection surface is deduced to be 2.6 × 108 cm/s.For the 200 nm thick CH target, a supercontinuum extending from 300 to 940 nm is observed in the direction of laser propagation.The density distribution of plasmas induced by laser prepulse is simulated using MULTI-1D hydrodynamic cede.The results show that, laser prepulse has a profound effect on the pre-plasma density distribution of a foil target, which leads to the differences in the observed spectra.关键词
超短超强激光/超连续谱/"钻孔"效应/辐射流体模拟Key words
ultrashort ultraintense laser/ supercontinuum/ hole boring effect/ radiation hydrodynamic simulation分类
数理科学引用本文复制引用
李勇,谷渝秋,王晓方,洪伟,朱斌,吴玉迟,董克攻,刘东晓,何颖玲,张璐,巫顺超..超短超强激光与薄膜靶作用的光学光谱[J].强激光与粒子束,2011,23(5):1290-1294,5.基金项目
中国工程物理研究院科学技术发展基金项目(2009B0102007) （2009B0102007）
国家自然科学基金项目(10775121,10774133,10876039,11075160) （10775121,10774133,10876039,11075160）
等离子体物理国防科技重点实验室基金项目(9140C6802030603) （9140C6802030603）
中国科学院知识刨新工程项目 （）
