Circular Dichroism in Laser-Assisted Short-Pulse Photoionization

Journal Article · Fri Dec 16 04:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.107.253002· OSTI ID:21612563

Kazansky, A K ^[1]; Grigorieva, A V ^[2]; Kabachnik, N M ^[3]

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1. Departamento de Fisica de Materiales, UPV/EHU, E-20018 San Sebastian/Donostia (Spain)
2. Fock Institute of Physics, State University of Saint Petersburg, Saint Petersburg 198504 (Russian Federation)
3. Donostia International Physics Center (DIPC), E-20018 San Sebastian/Donostia (Spain)

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.

• OSTI ID: 21612563
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 107; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
COLOR MODEL
COMPOSITE MODELS
DICHROISM
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
EXTREME ULTRAVIOLET RADIATION
IONIZATION
IONIZING RADIATIONS
MATHEMATICAL MODELS
PARTICLE MODELS
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
POLARIZATION
PULSES
QUARK MODEL
RADIATIONS
SPECTROSCOPY
ULTRAVIOLET RADIATION
X RADIATION