Linking High-Harmonic Generation and Strong-Field Ionization in Bulk Crystals

被引：9

作者：

Juergens, Peter ^{[1
,2
]}

Roscam Abbing, Sylvianne D. C. ^{[2
]}

Mero, Mark ^{[1
]}

Garcia, Clara L. ^{[1
]}

Brown, Graham G. ^{[1
]}

Vrakking, Marc J. J. ^{[1
]}

Mermillod-Blondin, Alexandre ^{[1
]}

Kraus, Peter M. ^{[2
,3
,4
]}

Husakou, Anton ^{[1
]}

机构：

[1] Max Born Inst Nonlinear Opt & Short Pulse Spect, D-12489 Berlin, Germany

[2] Adv Res Ctr Nanolithog ARCNL, NL-1098 XG Amsterdam, Netherlands

[3] Vrije Univ, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

[4] Vrije Univ, LaserLaB, NL-1081 HV Amsterdam, Netherlands

来源：

ACS PHOTONICS | 2024年 / 11卷 / 01期

基金：

欧洲研究理事会;

关键词：

high-harmonic generation; strong-field ionization; plasma formation; attosecond physics; strong-fieldphysics; ultrafast optics; nonlinear optics; PULSES; PROPAGATION;

D O I：

10.1021/acsphotonics.3c01436

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The generation of high-order harmonics in bulk solids subjected to intense ultrashort laser pulses has opened up new avenues for research in extreme nonlinear optics and light-matter interaction on subcycle time scales. Despite significant advancement over the past decade, a complete understanding of the involved phenomena is still lacking. High-harmonic generation in solids is currently understood as arising from nonlinear intraband currents, interband recollision, and ionization-related phenomena. As all of these mechanisms involve or rely upon laser-driven excitation, we combine measurements of the angular dependence of nonlinear absorption and high-order harmonic generation in bulk crystals to demonstrate the relation between high-harmonic emission and nonlinear, laser-induced ionization in solids. An unambiguous correlation between the emission of harmonics and laser-induced ionization is found experimentally, which is supported by numerical solutions of the semiconductor Bloch equations and an analytical model of orientation-dependent ionization rates using maximally localized Wannier functions.

引用

页码：247 / 256

页数：10

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