Circular Dichroism in Laser-Assisted Short-Pulse Photoionization

被引：24

作者：

Kazansky, A. K. ^{[1
,2
,3
]}

Grigorieva, A. V. ^{[4
]}

Kabachnik, N. M. ^{[2
,5
,6
]}

机构：

[1] Univ Basque Country, Dept Fis Mat, E-20018 San Sebastian, Spain

[2] DIPC, E-20018 San Sebastian, Spain

[3] Basque Fdn Sci, IKERBASQUE, E-48011 Bilbao, Spain

[4] St Petersburg State Univ, Fock Inst Phys, St Petersburg 198504, Russia

[5] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119991, Russia

[6] European XFEL GmbH, D-22761 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 25期

关键词：

ANGULAR-DISTRIBUTION; POLARIZED ATOMS; IONIZATION;

D O I：

10.1103/PhysRevLett.107.253002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A remarkable effect of circular dichroism, i.e., a difference in photoelectron spectra produced by right and left circularly polarized light in two-color multiphoton ionization of atoms, is predicted for the case when the atom is ionized by an extreme ultraviolet or x-ray femtosecond pulse in the field of a strong infrared laser pulse, both pulses being circularly polarized. We show that the sidebands formed in the spectra exhibit different circular dichroism often of different signs both in angle-resolved and angle-integrated experimental conditions. The effect can be used for detecting and measuring circular polarization of x rays in a spectral range where other methods are not effective.

引用

页数：5

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