High-order harmonic analysis of anisotropic petahertz photocurrents in solids

被引：18

作者：

Lanin, A. A. ^{[1
,3
]}

Stepanov, E. A. ^{[1
,3
]}

Mitrofanov, A. V. ^{[1
,3
,5
]}

Sidorov-Biryukov, D. A. ^{[1
,3
]}

Fedotov, A. B. ^{[1
,3
]}

Zheltikov, A. M. ^{[1
,2
,3
,4
]}

机构：

[1] Moscow MV Lomonosov State Univ, Ctr Int Laser, Dept Phys, Moscow 119992, Russia

[2] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

[3] Russian Quantum Ctr, Ul Novaya 100, Skolkovo 143025, Moscow Region, Russia

[4] Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Region, Russia

[5] Russian Acad Sci, Inst Laser & Informat Technol, Shatura 140700, Moscow Region, Russia

来源：

OPTICS LETTERS | 2019年 / 44卷 / 08期

基金：

俄罗斯基础研究基金会; 俄罗斯科学基金会;

关键词：

REAL-TIME OBSERVATION; BAND-STRUCTURE; GENERATION; ZNSE;

D O I：

10.1364/OL.44.001888

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Polarization maps of high-order harmonics are shown to enable a full vectorial characterization of petahertz electron currents generated in a crystalline solid by an ultrashort laser driver. As a powerful resource of this methodology, analysis of energy-momentum dispersion landscapes, defined by the electron band structure, can help identify, as our analysis shows, special directions within the Brillouin zone that can provide a preferable basis for polarization-sensitive high-harmonic mapping of anisotropic petahertz photocurrents in solids. (C) 2019 Optical Society of America

引用

页码：1888 / 1891

页数：4

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