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Title: Electron dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses

Abstract

The dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses have been investigated considering a single electron model. The spectral and angular distributions of the harmonics radiation are numerically analyzed and demonstrate significantly different characteristics from those of the low-intensity field case. Higher-order harmonic radiation is possible for a sufficiently intense driving laser pulse. A complex shifting and broadening structure of the spectrum is observed and analyzed for different polarization. For a realistic pulsed photon beam, the spectrum of the radiation is redshifted for backward radiation and blueshifted for forward radiation, and spectral broadening is noticed. This is due to the changes in the longitudinal velocity of the electron during the laser pulse. These effects are much more pronounced at higher laser intensities giving rise to even higher-order harmonics that eventually leads to a continuous spectrum. Numerical simulations have further shown that broadening of the high harmonic radiation can be limited by increasing the laser pulse width. The complex shifting and broadening of the spectra can be employed to characterize the ultrashort and ultraintense laser pulses and to study the ultrafast dynamics of the electrons.

Authors:
; ; ; ; ; ; ; ;  [1];  [2];  [2];  [3];  [2];  [4];  [2]
  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
  2. (China)
  3. (Germany)
  4. (India)
Publication Date:
OSTI Identifier:
20860458
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 13; Journal Issue: 12; Other Information: DOI: 10.1063/1.2402506; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 07 ISOTOPES AND RADIATION SOURCES; ANGULAR DISTRIBUTION; BEAM-PLASMA SYSTEMS; ELECTRONS; EMISSION SPECTRA; HARMONICS; LASERS; LIGHT TRANSMISSION; LINE BROADENING; NUMERICAL ANALYSIS; PHOTON BEAMS; PLASMA; PLASMA SIMULATION; PLASMA WAVES; POLARIZATION; PULSES; RADIATION TRANSPORT; RED SHIFT

Citation Formats

Tian Youwei, Yu Wei, He Feng, Xu Han, Senecha, Vinod, Deng Degang, Wang Yi, Li Ruxin, Xu Zhizhan, Graduate School of the Chinese Academy of Sciences, Beijing 100039, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Max-Planck-Institute fuer Physik Komplexer Systeme, Dresden D-01187, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Centre for Advanced Technology, Indore-452 013, and State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800. Electron dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses. United States: N. p., 2006. Web. doi:10.1063/1.2402506.
Tian Youwei, Yu Wei, He Feng, Xu Han, Senecha, Vinod, Deng Degang, Wang Yi, Li Ruxin, Xu Zhizhan, Graduate School of the Chinese Academy of Sciences, Beijing 100039, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Max-Planck-Institute fuer Physik Komplexer Systeme, Dresden D-01187, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Centre for Advanced Technology, Indore-452 013, & State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800. Electron dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses. United States. doi:10.1063/1.2402506.
Tian Youwei, Yu Wei, He Feng, Xu Han, Senecha, Vinod, Deng Degang, Wang Yi, Li Ruxin, Xu Zhizhan, Graduate School of the Chinese Academy of Sciences, Beijing 100039, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Max-Planck-Institute fuer Physik Komplexer Systeme, Dresden D-01187, State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, Centre for Advanced Technology, Indore-452 013, and State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800. Fri . "Electron dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses". United States. doi:10.1063/1.2402506.
@article{osti_20860458,
title = {Electron dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses},
author = {Tian Youwei and Yu Wei and He Feng and Xu Han and Senecha, Vinod and Deng Degang and Wang Yi and Li Ruxin and Xu Zhizhan and Graduate School of the Chinese Academy of Sciences, Beijing 100039 and State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 and Max-Planck-Institute fuer Physik Komplexer Systeme, Dresden D-01187 and State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 and Centre for Advanced Technology, Indore-452 013 and State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800},
abstractNote = {The dynamics and harmonics emission spectra due to electron oscillation driven by intense laser pulses have been investigated considering a single electron model. The spectral and angular distributions of the harmonics radiation are numerically analyzed and demonstrate significantly different characteristics from those of the low-intensity field case. Higher-order harmonic radiation is possible for a sufficiently intense driving laser pulse. A complex shifting and broadening structure of the spectrum is observed and analyzed for different polarization. For a realistic pulsed photon beam, the spectrum of the radiation is redshifted for backward radiation and blueshifted for forward radiation, and spectral broadening is noticed. This is due to the changes in the longitudinal velocity of the electron during the laser pulse. These effects are much more pronounced at higher laser intensities giving rise to even higher-order harmonics that eventually leads to a continuous spectrum. Numerical simulations have further shown that broadening of the high harmonic radiation can be limited by increasing the laser pulse width. The complex shifting and broadening of the spectra can be employed to characterize the ultrashort and ultraintense laser pulses and to study the ultrafast dynamics of the electrons.},
doi = {10.1063/1.2402506},
journal = {Physics of Plasmas},
number = 12,
volume = 13,
place = {United States},
year = {Fri Dec 15 00:00:00 EST 2006},
month = {Fri Dec 15 00:00:00 EST 2006}
}