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Title: Control of focusing fields for positron acceleration in nonlinear plasma wakes using multiple laser modes

Control of transverse wakefields in the nonlinear laser-driven bubble regime using a combination of Hermite-Gaussian laser modes is proposed. By controlling the relative intensity ratio of the two laser modes, the focusing force can be controlled, enabling matched beam propagation for emittance preservation. A ring bubble can be generated with a large longitudinal accelerating field and a transverse focusing field suitable for positron beam focusing and acceleration.
Authors:
; ; ;  [1] ; ; ;  [2] ;  [1] ;  [3]
  1. Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy, IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240 (China)
  2. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  3. (United Kingdom)
Publication Date:
OSTI Identifier:
22403312
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; BUBBLES; CONTROL; FOCUSING; LASERS; NONLINEAR PROBLEMS; PLASMA; POSITRON BEAMS; POSITRONS