物理学报2011，Vol.60Issue(3)：196-200,5.
原子在红外激光场中产生高次谐波及阿秒脉冲随波长的变化规律
The wavelength dependence of high-order harmonic generation and attosecond pulses from atom in infrared laser field
摘要
Abstract
Basing on the strong-field approximation, we study high harmonic generation of hydrogen atom exposed to the long wavelength infrared laser field, and analyze the wavelength dependence of conversion efficiency of high-order harmonic generation near the cut-off position. It is found that high-order harmonic yield is much lower near cut-off than in the beginning of the plateau of the harmonic generation, but the width of the attosecond pulse is narrowed with increasing wavelength.关键词
强场近似/高次谐波/阿秒脉冲Key words
strong-field approximation/ high-order harmonic/ attosecond pulse引用本文复制引用
成春芝,周效信,李鹏程..原子在红外激光场中产生高次谐波及阿秒脉冲随波长的变化规律[J].物理学报,2011,60(3):196-200,5.基金项目
国家自然科学基金(批准号:11044007,11047016),高等学校博士学科点专项科研基金(批准号:20096203110001),西北师范大学创新项目(批准号:NWNU-KJCXGC-03-62)资助的课题. （批准号:11044007,11047016）
