Control of the high-order harmonic generation by sculpting waveforms with chirp in solids

被引：10
作者：
Fan, Jun-Gang [1 ,2 ,3 ]
Miao, Xiang-Yang [1 ,2 ,3 ]
Jia, Xiang-Fu [1 ,2 ,3 ]
机构：
[1] Shanxi Normal Univ, Coll Phys & Informat Engn, Linfen 041004, Shanxi, Peoples R China
[2] Shanxi Normal Univ, Key Lab Spectral Measurement & Anal Shanxi Prov, Linfen 041004, Shanxi, Peoples R China
[3] Shanxi Normal Univ, Coll Chem & Mat Sci, Linfen 041004, Shanxi, Peoples R China
来源：
CHEMICAL PHYSICS LETTERS | 2021年 / 762卷
基金：
中国国家自然科学基金;
关键词：
40;
D O I：
10.1016/j.cplett.2020.138136
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel method for controlling the high-order harmonic generation in solids with few cycle nonlinear chirped driver laser pulses is proposed. High-order-harmonic generation (HHG) is simulated by solving the one-dimensional (1D) time-dependent Schrodinger equation. The quantum path of HHG is complex in solid system, multichannel contribution in the plateau region is identified and manipulated in this paper. Our results show that negative chirp can broaden the second plateau of HHG when the time point of the chirped central frequency remains unchanged. The physical mechanism is discussed by the time-frequency, quasi-classical analysis and population in each energy band.
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页数：7
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