Circular Dichroism in Laser-Assisted Short-Pulse Photoionization

Journal Article · Fri Dec 16 00:00:00 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, Vol. 107, Issue 25; Other Information: DOI: 10.1103/PhysRevLett.107.253002; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

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