Nonlinear Plasma Waves Resonantly Driven by Optimized Laser Pulse Trains

Authors

• Donald Umstadter, University of Nebraska-LincolnFollow
• Eric Esarey, Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, D.C.Follow
• J. Kim, University of Michigan, Ann Arbor

Document Type

Article

Date of this Version

2-21-1994

Comments

Published by American Physical Society. Physical Review Letters 72, 1224 (1994). http://prl.aps.org. Copyright © 1994 American Physical Society. Permission to use.

Abstract

A method for generating large-amplitude plasma waves, which utilizes an optimized train of independently adjustable, intense laser pulses, is discussed and analyzed. Both the pulse widths and interpulse spacings are optimally determined such that resonance is maintained and the plasma wave amplitude is maximized. By mitigating the effects of both phase and resonant detuning, and by reducing laser-plasma instabilities, the use of appropriately tailored multiple laser pulses is a highly advantageous technique for accelerating electrons. Practical methods of producing the required pulse trains are suggested.