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Title: Attosecond and zeptosecond x-ray pulses via nonlinear Thomson backscattering

Abstract

Nonlinear Thomson backscattering of an intense circularly polarized laser by a counterpropagating energetic electron is investigated. The results show that in the scattering of a non-tightly-focused laser pulse with an intensity around 10{sup 19} W/cm{sup 2} and a pulse duration of 100 fs full width at half maximum by a counterpropagating electron with an initial energy of 10 MeV, a crescent-shaped pulse with a pulse duration of 469 as and the photon energy ranging from 230 eV to 2.5 keV is generated in the backward direction. It is shown that the radiated pulse shape and monochromaticity can be modified by changing the laser beam waist, while in the case of a tightly focused laser field, a single peak pulse with a shorter duration and better monochromaticity can be obtained. With increase of the electron initial energy, the peak power of the radiated pulse increases and the pulse duration decreases. An isolated powerful zeptosecond (10{sup -21} s) pulse with a peak power of about 10{sup 10} W/rad{sup 2} and photon energy up to several MeV can be obtained with a 250 MeV electron.

Authors:
; ; ;  [1]
  1. State Key Laboratory of Laser Technology and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074 (China)
Publication Date:
OSTI Identifier:
20778471
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; Journal Volume: 72; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevE.72.066501; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BACKSCATTERING; EV RANGE 100-1000; KEV RANGE 01-10; LASER RADIATION; LASERS; MEV RANGE 10-100; MEV RANGE 100-1000; NONLINEAR PROBLEMS; PEAK LOAD; PHOTONS; PULSE SHAPERS; PULSES; TAIL ELECTRONS; THOMSON SCATTERING; X RADIATION; X-RAY SOURCES

Citation Formats

Lan Pengfei, Lu Peixiang, Cao Wei, and Wang Xinlin. Attosecond and zeptosecond x-ray pulses via nonlinear Thomson backscattering. United States: N. p., 2005. Web. doi:10.1103/PHYSREVE.72.0.
Lan Pengfei, Lu Peixiang, Cao Wei, & Wang Xinlin. Attosecond and zeptosecond x-ray pulses via nonlinear Thomson backscattering. United States. doi:10.1103/PHYSREVE.72.0.
Lan Pengfei, Lu Peixiang, Cao Wei, and Wang Xinlin. Thu . "Attosecond and zeptosecond x-ray pulses via nonlinear Thomson backscattering". United States. doi:10.1103/PHYSREVE.72.0.
@article{osti_20778471,
title = {Attosecond and zeptosecond x-ray pulses via nonlinear Thomson backscattering},
author = {Lan Pengfei and Lu Peixiang and Cao Wei and Wang Xinlin},
abstractNote = {Nonlinear Thomson backscattering of an intense circularly polarized laser by a counterpropagating energetic electron is investigated. The results show that in the scattering of a non-tightly-focused laser pulse with an intensity around 10{sup 19} W/cm{sup 2} and a pulse duration of 100 fs full width at half maximum by a counterpropagating electron with an initial energy of 10 MeV, a crescent-shaped pulse with a pulse duration of 469 as and the photon energy ranging from 230 eV to 2.5 keV is generated in the backward direction. It is shown that the radiated pulse shape and monochromaticity can be modified by changing the laser beam waist, while in the case of a tightly focused laser field, a single peak pulse with a shorter duration and better monochromaticity can be obtained. With increase of the electron initial energy, the peak power of the radiated pulse increases and the pulse duration decreases. An isolated powerful zeptosecond (10{sup -21} s) pulse with a peak power of about 10{sup 10} W/rad{sup 2} and photon energy up to several MeV can be obtained with a 250 MeV electron.},
doi = {10.1103/PHYSREVE.72.0},
journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},
number = 6,
volume = 72,
place = {United States},
year = {Thu Dec 15 00:00:00 EST 2005},
month = {Thu Dec 15 00:00:00 EST 2005}
}