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

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4903536· OSTI ID:22403312

Li, F. -Y.; Chen, M.; Weng, S. -M. ^[1]; Schroeder, C. B.; Benedetti, C.; Esarey, E. ^[2]; Sheng, Z. -M. ^[1]

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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)

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.

• OSTI ID: 22403312
• Journal Information: Physics of Plasmas, Vol. 21, Issue 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
BUBBLES
CONTROL
FOCUSING
LASERS
NONLINEAR PROBLEMS
PLASMA
POSITRON BEAMS
POSITRONS