文献类型：期刊文献

中文题名：High-order harmonic generation in sub-one-cycle regime

英文题名：High-order harmonic generation in sub-one-cycle regime

作者：Xiang Yang[1];Niu Yue-Ping[2];Qi Yi-Hong[2];Gong Shang-Qing[2]

机构：[1]Henan Polytech Univ, Sch Comp Sci & Technol, Jiaozuo 454000, Peoples R China;[2]E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China

年份：2012

卷号：21

期号：6

中文期刊名：Chinese Physics B

外文期刊名：CHINESE PHYSICS B

收录：CSTPCD;;EI(收录号：20122615155157);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000305403900040)】；CSCD:【CSCD2011_2012】；

基金：Project supported by the National Natural Science Foundation of China (Grant No. 10734080, 11074263, 60978013, 60921004, and 10874194) and the Doctor Fund of Henan Polytechnic University (Grant No. B2011-076).

语种：英文

中文关键词：high-order harmonic generation;sub-one-cycle pulse;switching term

外文关键词：high-order harmonic generation; sub-one-cycle pulse; switching term

摘要：We theoretically investigate the high-order harmonic generation from the hydrogen atom driven by the laser pulses with the durations less than the optical cycle. It is found that the switching term of the laser field may have an obvious influence on the cutoff, intensity or plateau structure of the high-order harmonic spectrum. Generally speaking, the switching term can shorten the cutoff of the high-order harmonic spectrum for a relatively longer pulse and extend the cutoff for a relatively shorter pulse.
We theoretically investigate the high-order harmonic generation from the hydrogen atom driven by the laser pulses with the durations less than the optical cycle. It is found that the switching term of the laser field may have an obvious influence on the cutoff, intensity or plateau structure of the high-order harmonic spectrum. Generally speaking, the switching term can shorten the cutoff of the high-order harmonic spectrum for a relatively longer pulse and extend the cutoff for a relatively shorter pulse.