Generation of few-cycle laser pulses:Comparison between atomic and molecular gases in a hollow-core fiber  

作　　者：黄志远 戴晔 赵睿睿 王丁 冷雨欣 

机构地区：[1]Department of Physics, Shanghai University [2]State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2016年第7期239-245,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11204328,61221064,61078037,11127901,11134010,and 61205208);the National Basic Research Program of China(Grant No.2011CB808101);the Natural Science Foundation of Shanghai,China(Grant No.13ZR1414800)

摘　　要：We numerically study the pulse compression approaches based on atomic or molecular gases in a hollow-core fiber.From the perspective of self-phase modulation（SPM）, we give the extensive study of the SPM influence on a probe pulse with molecular phase modulation（MPM） effect. By comparing the two compression methods, we summarize their advantages and drawbacks to obtain the few-cycle pulses with micro- or millijoule energies. It is also shown that the double pump-probe approach can be used as a tunable dual-color source by adjusting the time delay between pump and probe pulses to proper values.We numerically study the pulse compression approaches based on atomic or molecular gases in a hollow-core fiber.From the perspective of self-phase modulation（SPM）, we give the extensive study of the SPM influence on a probe pulse with molecular phase modulation（MPM） effect. By comparing the two compression methods, we summarize their advantages and drawbacks to obtain the few-cycle pulses with micro- or millijoule energies. It is also shown that the double pump-probe approach can be used as a tunable dual-color source by adjusting the time delay between pump and probe pulses to proper values.

关 键 词：hollow-core fiber phase modulation pulses compression few-cycle pulses 

分 类 号：TN24[电子电信—物理电子学]