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Title: Analytical description of attosecond pulse generation on a plasma surface irradiated by high-intense laser pulses

Abstract

We study theoretically the process of turning a laser pulse into a train of attosecond or even zeptosecond pulses due to high harmonic generation (HHG) upon backreflection of intense laser radiation from a plasma surface. It is shown that under appropriate conditions these attosecond pulses may have an amplitude that is several orders of magnitude larger than that of the laser pulse. We study this process in detail, especially the nanobunching of the plasma electron density. We derive the analytical expression that describes the electron density profile and obtain a good agreement with particle-in-cell simulations. We investigate the most efficient case of HHG at a moderate laser intensity (normalised vector potential α{sub 0} = 10) on the overdense plasma slab with an exponential pre-plasma profile. Subsequently we calculate the spectra of single attosecond pulses from back radiation using our expression for density shape in combination with the equation for spectrum of nanobunch radiation. (extreme laser radiation: physics and fundamental applications)

Authors:
;  [1]
  1. Institut für Theoretische Physik, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf (Germany)
Publication Date:
OSTI Identifier:
22724648
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 46; Journal Issue: 4; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; ANALYTIC FUNCTIONS; COMPUTERIZED SIMULATION; ELECTRON DENSITY; EQUATIONS; HARMONIC GENERATION; IRRADIATION; LASER RADIATION; PLASMA RADIAL PROFILES; SLABS; SPECTRA; VECTOR FIELDS

Citation Formats

Cherednychek, M, and Pukhov, A. Analytical description of attosecond pulse generation on a plasma surface irradiated by high-intense laser pulses. United States: N. p., 2016. Web. doi:10.1070/QEL16053.
Cherednychek, M, & Pukhov, A. Analytical description of attosecond pulse generation on a plasma surface irradiated by high-intense laser pulses. United States. doi:10.1070/QEL16053.
Cherednychek, M, and Pukhov, A. Sat . "Analytical description of attosecond pulse generation on a plasma surface irradiated by high-intense laser pulses". United States. doi:10.1070/QEL16053.
@article{osti_22724648,
title = {Analytical description of attosecond pulse generation on a plasma surface irradiated by high-intense laser pulses},
author = {Cherednychek, M and Pukhov, A},
abstractNote = {We study theoretically the process of turning a laser pulse into a train of attosecond or even zeptosecond pulses due to high harmonic generation (HHG) upon backreflection of intense laser radiation from a plasma surface. It is shown that under appropriate conditions these attosecond pulses may have an amplitude that is several orders of magnitude larger than that of the laser pulse. We study this process in detail, especially the nanobunching of the plasma electron density. We derive the analytical expression that describes the electron density profile and obtain a good agreement with particle-in-cell simulations. We investigate the most efficient case of HHG at a moderate laser intensity (normalised vector potential α{sub 0} = 10) on the overdense plasma slab with an exponential pre-plasma profile. Subsequently we calculate the spectra of single attosecond pulses from back radiation using our expression for density shape in combination with the equation for spectrum of nanobunch radiation. (extreme laser radiation: physics and fundamental applications)},
doi = {10.1070/QEL16053},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 4,
volume = 46,
place = {United States},
year = {2016},
month = {4}
}