Effect of multiple conduction bands on high-harmonic emission from dielectrics

被引：151

作者：

Hawkins, Peter G. ^{[1
]}

Ivanov, Misha Yu. ^{[1
,2
]}

Yakovlev, Vladislav S. ^{[3
,4
,5
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England

[2] Max Born Inst, D-12489 Berlin, Germany

[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[4] Univ Munich, Dept Phys, D-58748 Garching, Germany

[5] Georgia State Univ, Dept Phys & Astron, Ctr Nanoopt, Atlanta, GA 30303 USA

来源：

PHYSICAL REVIEW A | 2015年 / 91卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

MOLECULES; DYNAMICS; TIME; INTERFEROMETRY; GENERATION; ELECTRONS; FIELD;

D O I：

10.1103/PhysRevA.91.013405

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We find that, for sufficiently strong mid-IR fields, transitions between different conduction bands play an important role in the generation of high-order harmonics in a dielectric. The transitions make a significant contribution to the harmonic signal, and they can create a single effective band for the motion of an electron wave packet. We show how high harmonic spectra produced during the interaction of ultrashort laser pulses with periodic solids provide a spectroscopic tool for understanding the effective band structure that controls electron dynamics in these media.

引用

页数：5

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