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Title: Control of the photoelectron dynamics for the effective conversion of short-pulse, frequency-modulated optical radiation into X-ray radiation

Abstract

We report a theoretical investigation of high-order harmonic generation (HHG) in the ionisation of atoms by nonlinear frequency-modulated laser pulses of short duration. It is shown that the reduction in the instantaneous value of the laser pulse frequency can lead to a significant increase in the width of the plateau in the HHG spectrum. We have found optimal parameters of frequency modulation at which photons with energies of 1 keV are efficiently generated at a relatively low laser-pulse intensity. High HHG efficiency at optimal parameters is explained by the peculiarities of atomic ionisation dynamics and acceleration of photoelectrons by a frequency-modulated laser field. (extreme light fields and their applications)

Authors:
; ; ; ;  [1]
  1. Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod (Russian Federation)
Publication Date:
OSTI Identifier:
22551246
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 45; Journal Issue: 5; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATION; ATOMS; FREQUENCY MODULATION; HARMONIC GENERATION; IONIZATION; KEV RANGE; LASER RADIATION; PHOTOELECTRON SPECTROSCOPY; PHOTONS; PULSES; SPECTRA; X RADIATION

Citation Formats

Silaev, A A, Meshkov, O V, Emelin, M Yu, Vvedenskii, N V, and Ryabikin, M Yu. Control of the photoelectron dynamics for the effective conversion of short-pulse, frequency-modulated optical radiation into X-ray radiation. United States: N. p., 2015. Web. doi:10.1070/QE2015V045N05ABEH015789.
Silaev, A A, Meshkov, O V, Emelin, M Yu, Vvedenskii, N V, & Ryabikin, M Yu. Control of the photoelectron dynamics for the effective conversion of short-pulse, frequency-modulated optical radiation into X-ray radiation. United States. doi:10.1070/QE2015V045N05ABEH015789.
Silaev, A A, Meshkov, O V, Emelin, M Yu, Vvedenskii, N V, and Ryabikin, M Yu. Sun . "Control of the photoelectron dynamics for the effective conversion of short-pulse, frequency-modulated optical radiation into X-ray radiation". United States. doi:10.1070/QE2015V045N05ABEH015789.
@article{osti_22551246,
title = {Control of the photoelectron dynamics for the effective conversion of short-pulse, frequency-modulated optical radiation into X-ray radiation},
author = {Silaev, A A and Meshkov, O V and Emelin, M Yu and Vvedenskii, N V and Ryabikin, M Yu},
abstractNote = {We report a theoretical investigation of high-order harmonic generation (HHG) in the ionisation of atoms by nonlinear frequency-modulated laser pulses of short duration. It is shown that the reduction in the instantaneous value of the laser pulse frequency can lead to a significant increase in the width of the plateau in the HHG spectrum. We have found optimal parameters of frequency modulation at which photons with energies of 1 keV are efficiently generated at a relatively low laser-pulse intensity. High HHG efficiency at optimal parameters is explained by the peculiarities of atomic ionisation dynamics and acceleration of photoelectrons by a frequency-modulated laser field. (extreme light fields and their applications)},
doi = {10.1070/QE2015V045N05ABEH015789},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 5,
volume = 45,
place = {United States},
year = {2015},
month = {5}
}