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Title: Optimal laser pulse shaping in Laser Wakefield Accelerators

Abstract

We show that, in analogy to the electron beam driven Plasma Wakefield Accelerator (PWFA), an optimal transformer ratio can be attained in the laser driven Laser Wakefield Accelerator (LWFA), by properly shaping the longitudinal profile of the driving laser pulse. The concept of transformer ratio is introduced for accelerating scheme comprised of different particle species, and then applied to LWFA. The optimal laser pulse shape is derived under general conditions including the nonlinear regime of laser-plasma interaction. We show that, while the scaling for optimal transformer ratio is the same in the nonlinear regime, the corresponding laser intensity distribution is different from that for the electron beam. However, when our nonlinear result is reduced to the linear regime of plasma perturbation, the requirement for the laser pulse shape, which we previously derived, is identical to that for the electron beam. {copyright} {ital 1999 American Institute of Physics.}

Authors:
 [1]
  1. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305 (United States) Spitkovsky, A. [Department of Physics, University of California at Berkeley, Berkeley, California 94720 (United States)
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
704006
Report Number(s):
CONF-980742-
Journal ID: APCPCS; ISSN 0094-243X; TRN: 9922M0023
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 472; Journal Issue: 1; Conference: 8. workshop on advanced accelerator concepts, Baltimore, MD (United States), 6-11 Jul 1998; Other Information: PBD: Jul 1999
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; WAKEFIELD ACCELERATORS; ELECTRON BEAMS; LASER RADIATION; BEAM TRANSPORT; BEAT WAVE ACCELERATORS; BEAM DYNAMICS; BEAM-PLASMA SYSTEMS

Citation Formats

Chen, P. Optimal laser pulse shaping in Laser Wakefield Accelerators. United States: N. p., 1999. Web. doi:10.1063/1.58852.
Chen, P. Optimal laser pulse shaping in Laser Wakefield Accelerators. United States. doi:10.1063/1.58852.
Chen, P. Thu . "Optimal laser pulse shaping in Laser Wakefield Accelerators". United States. doi:10.1063/1.58852.
@article{osti_704006,
title = {Optimal laser pulse shaping in Laser Wakefield Accelerators},
author = {Chen, P.},
abstractNote = {We show that, in analogy to the electron beam driven Plasma Wakefield Accelerator (PWFA), an optimal transformer ratio can be attained in the laser driven Laser Wakefield Accelerator (LWFA), by properly shaping the longitudinal profile of the driving laser pulse. The concept of transformer ratio is introduced for accelerating scheme comprised of different particle species, and then applied to LWFA. The optimal laser pulse shape is derived under general conditions including the nonlinear regime of laser-plasma interaction. We show that, while the scaling for optimal transformer ratio is the same in the nonlinear regime, the corresponding laser intensity distribution is different from that for the electron beam. However, when our nonlinear result is reduced to the linear regime of plasma perturbation, the requirement for the laser pulse shape, which we previously derived, is identical to that for the electron beam. {copyright} {ital 1999 American Institute of Physics.}},
doi = {10.1063/1.58852},
journal = {AIP Conference Proceedings},
number = 1,
volume = 472,
place = {United States},
year = {1999},
month = {7}
}