Coherent control of plasma dynamics by feedback-optimized wavefront manipulation

He, Z. -H. and Hou, B. and Gao, G. and Lebailly, V. and Nees, J. A. and Clarke, R. and Krushelnick, K. and Thomas, A. G. R. (2015) Coherent control of plasma dynamics by feedback-optimized wavefront manipulation. Physics of Plasmas, 22 (5). ISSN 1070-664X

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Abstract

Plasmas generated by an intense laser pulse can support coherent structures such as large amplitude wakefield that can affect the outcome of an experiment. We investigate the coherent control of plasma dynamics by feedback-optimized wavefront manipulation using a deformable mirror. The experimental outcome is directly used as feedback in an evolutionary algorithm for optimization of the phase front of the driving laser pulse. In this paper, we applied this method to two different experiments: (i) acceleration of electrons in laser driven plasma waves and (ii) self-compression of optical pulses induced by ionization nonlinearity. The manipulation of the laser wavefront leads to orders of magnitude improvement to electron beam properties such as the peak charge, beam divergence, and transverse emittance. The demonstration of coherent control for plasmas opens new possibilities for future laser-based accelerators and their applications. (c) 2015 AIP Publishing LLC.

Item Type:
Journal Article
Journal or Publication Title:
Physics of Plasmas
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
82760
Deposited By:
Deposited On:
09 Nov 2016 14:36
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 09:45