Effect of laser-focusing conditions on propagation and monoenergetic electron production in laser-wakefield accelerators

Thomas, A. G. R. and Najmudin, Z. and Mangles, S. P. D. and Murphy, C. D. and Dangor, A. E. and Kamperidis, C. and Lancaster, K. L. and Mori, W. B. and Norreys, P. A. and Rozmus, W. and Krushelnick, K. (2007) Effect of laser-focusing conditions on propagation and monoenergetic electron production in laser-wakefield accelerators. Physical review letters, 98 (9). ISSN 0031-9007

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Abstract

The effect of laser-focusing conditions on the evolution of relativistic plasma waves in laser-wakefield accelerators is studied both experimentally and with particle-in-cell simulations. For short focal-length (w(0)lambda(p)), a single optical filament can capture the majority of the laser energy and self-guide over distances comparable to the dephasing length, even for these short pulses (c tau approximate to lambda(p)). This allows the wakefield to evolve to the correct shape for the production of the monoenergetic electron bunches, as measured in the experiment.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
82802
Deposited By:
Deposited On:
11 Nov 2016 13:58
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Feb 2020 07:44