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Title: Coherent control of plasma dynamics by feedback-optimized wavefront manipulation

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.

Authors:
; ; ; ; ;  [1];  [2];  [3]
  1. Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099 (United States)
  2. Polytech Paris-Sud - Université Paris-Sud, 91405 Orsay (France)
  3. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
Publication Date:
OSTI Identifier:
22410419
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; ALGORITHMS; AMPLITUDES; DYNAMICS; ELECTRON BEAMS; EXPERIMENTAL DATA; IONIZATION; LASER-PRODUCED PLASMA; LASERS; NONLINEAR PROBLEMS; OPTIMIZATION; PLASMA WAVES; PULSES

Citation Formats

He, Z.-H., Hou, B., Gao, G., Nees, J. A., Krushelnick, K., Thomas, A. G. R., Lebailly, V., and Clarke, R. Coherent control of plasma dynamics by feedback-optimized wavefront manipulation. United States: N. p., 2015. Web. doi:10.1063/1.4921159.
He, Z.-H., Hou, B., Gao, G., Nees, J. A., Krushelnick, K., Thomas, A. G. R., Lebailly, V., & Clarke, R. Coherent control of plasma dynamics by feedback-optimized wavefront manipulation. United States. doi:10.1063/1.4921159.
He, Z.-H., Hou, B., Gao, G., Nees, J. A., Krushelnick, K., Thomas, A. G. R., Lebailly, V., and Clarke, R. Fri . "Coherent control of plasma dynamics by feedback-optimized wavefront manipulation". United States. doi:10.1063/1.4921159.
@article{osti_22410419,
title = {Coherent control of plasma dynamics by feedback-optimized wavefront manipulation},
author = {He, Z.-H. and Hou, B. and Gao, G. and Nees, J. A. and Krushelnick, K. and Thomas, A. G. R. and Lebailly, V. and Clarke, R.},
abstractNote = {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.},
doi = {10.1063/1.4921159},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 22,
place = {United States},
year = {2015},
month = {5}
}