High harmonic generation in crystal SiO2 by sub-10-fs laser pulses

被引：4

作者：

Wang, Shuai ^{[1
,2
]}

Guo, Jiawei ^{[4
]}

He, Xinkui ^{[1
,2
,3
]}

Liang, Yueying ^{[1
,2
]}

Xie, Baichuan ^{[1
,2
]}

Zhong, Shiyang ^{[1
]}

Teng, Hao ^{[1
]}

Wei, Zhiyi ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100490, Peoples R China

[3] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China

[4] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

来源：

CHINESE PHYSICS B | 2023年 / 32卷 / 06期

基金：

中国国家自然科学基金;

关键词：

solid state hhg; few-cycle laser pulses; broad spectrum; interference peak;

D O I：

10.1088/1674-1056/acc452

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The high harmonic generation (HHG) by few-cycle laser pulses is essential for research in strong-field solid-state physics. Through comparison of high harmonic spectra of solids generated by laser pulses with varying durations, we discovered that lasers with good dispersion compensation are capable of producing a broad spectrum of high harmonics. As the pulse duration is further compressed, several interference peaks appear in the broad spectrum. Moreover, we conducted simulations using the semiconductor Bloch equation, considering the effect of Berry curvature, to better understand this process. Our work provides a valuable approach for studying HHG by few-cycle laser pulses in solid materials, expanding the application of HHG in attosecond physics.

引用

页数：5

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