摘要
以Keldysh -Faisal-Reiss(KFR)的电离速率理论为基础 ,采用Yukawa函数 ,对氦原子和氙原子的电子能谱进行了计算 ,并将理论计算结果与实验结果进行了比较和分析 .结果表明 ,对于强场中稀有气体电离的电子能谱 ,此理论能够给出很好的解释和估计 ;同时对 10Hz、140fs、5 0mJ、795nm的掺钛蓝宝石激光系统驱动的圆偏振场电离 I0 =3× 10 16W /cm2 时的氪的电子能谱进行了理论计算 ,为研究基于光场感生电离的电子碰撞机制的类镍氪系统的实验奠定理论基础 .
The electron energy spectra of He and Xe are calculated from high intensity above-threshold using Yukawa function and following the Keldysh-Faisal-Reiss (KFR) theory. The calculated results are compared with the experimental spectra. Qualitative agreement is very good at high field intensities. At the same time, the electron energy spectrum of Kr is calculated using circularly polarized radiation driven by 10 Hz, 140 fs, 50 mJ, 795 nm laser system, which provides theoretical basis for realizing Ni-like Kr system based on optical-field-induced, ionized electron collisional excitation.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2001年第5期602-605,共4页
Journal of Harbin Institute of Technology
基金
博士点基金和国家自然科学基金资助项目( 6 0 0 780 10 )
国家高技术研究发展计划资助项目( 86 3-4 10 -7)
