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
收藏
页码：1888 / 1891
页数：4
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