Carrier-envelope phase effects on high-harmonic generation driven by mid-infrared laser field  

作　　者：刁寒虎 郑颖辉 钟悦 曾志男 葛晓春 李闯 李儒新 徐至展 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2014年第10期168-174,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.11127901,61221064,11134010,11227902,11222439,and 11274325);the National Basic Research Program of China(Grant No.2011CB808103);the Funds from Shanghai Commission of Science and Technology(Grant No.12QA1403700)

摘　　要：The influence of the carrier-envelope phase on high-harmonic generation is investigated, both experimentally and theoretically, for three different interaction gas media, driven by mid-infrared, few-cycle and CEP-stabiUzed laser pulses. Different patterns of harmonic spectra with varying CEP for the three interaction gas media are observed. Furthermore, in comparing our experiment results to the previous works driven by near-infrared laser pulses, different phenomena are found. Through numerical simulation, we find that for the two different kinds of driving fields, i.e. mid-infrared and near-infrared laser pulses, different kinds of electron trajectories contribute to the generation of high harmonics.The influence of the carrier-envelope phase on high-harmonic generation is investigated, both experimentally and theoretically, for three different interaction gas media, driven by mid-infrared, few-cycle and CEP-stabiUzed laser pulses. Different patterns of harmonic spectra with varying CEP for the three interaction gas media are observed. Furthermore, in comparing our experiment results to the previous works driven by near-infrared laser pulses, different phenomena are found. Through numerical simulation, we find that for the two different kinds of driving fields, i.e. mid-infrared and near-infrared laser pulses, different kinds of electron trajectories contribute to the generation of high harmonics.

关 键 词：high-harmonic generation carrier-envelope phase MID-INFRARED 

分 类 号：TN24[电子电信—物理电子学] O431[机械工程—光学工程]