Chiral dichroism in bi-elliptical high-order harmonic generation

被引：33

作者：

Ayuso, David ^{[1
]}

Decleva, Piero ^{[2
]}

Patchkovskii, Serguei ^{[1
]}

Smirnova, Olga ^{[1
,3
]}

机构：

[1] Max Born Inst Nonlinear Opt & Short Pulse Spect, Max Born Str 2A, D-12489 Berlin, Germany

[2] Univ Trieste, Dipartimento Sci Chim & Farmaceut, Via L Giorgieri 1, I-34127 Trieste, Italy

[3] Tech Univ Berlin, Ernst Ruska Gebaude,Hardenbergstr 36A, D-10623 Berlin, Germany

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2018年 / 51卷 / 06期

关键词：

high-order harmonic generation; chiral discrimination; strong-field physics; attosecond physics; chiral electron dynamics; PHOTOELECTRON CIRCULAR-DICHROISM; MULTIPHOTON IONIZATION; ANGULAR-DISTRIBUTION; OPTICAL-ACTIVITY; HOLE DYNAMICS; GAS-PHASE; MOLECULES; LASER; PHOTOIONIZATION; POLARIZATION;

D O I：

10.1088/1361-6455/aaae5e

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The application of strong bi-elliptically polarized laser fields to the generation of high-order harmonics in organic molecules offers exceptional opportunities for chiral recognition and chiral discrimination. These fields are made by combining an elliptically polarized fundamental, typically in the infrared range, with its counter-rotating second harmonic. Here we present a theoretical study of the harmonic emission from the chiral molecule propylene oxide in bi-elliptical fields. Our calculations include, for the first time in such a complex system, accurate photorecomination matrix elements, evaluated using the static-exchange density functional theory method. We show that bi-elliptical light can induce strong chiral dichroism in the harmonic spectra of chiral molecules in a broad range of harmonic numbers and ellipticities.

引用

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