Visualization of plasma bubble accelerators using Frequency-Domain Shadowgraphy:ICHED 2009 - 2nd International Conference on High Energy Density Physics

Dong, P. and Reed, S.A. and Yi, S.A. and Kalmykov, S.Y. and Shvets, G. and Downer, M.C. and Matlis, N.H. and Leemans, W.P. and McGuffey, C. and Bulanov, S.S. and Chvykov, V. and Kalintchenko, G. and Krushelnick, K. and Maksimchuk, A. and Matsuoka, T. and Thomas, A.G.R. and Yanovsky, V. (2010) Visualization of plasma bubble accelerators using Frequency-Domain Shadowgraphy:ICHED 2009 - 2nd International Conference on High Energy Density Physics. High Energy Density Physics, 6 (2). pp. 153-156. ISSN 1574-1818

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Abstract

We report on generation of relativistic electron beams in the wake of a relativistically intense laser pulse traversing a 1.7 mm long atmospheric density helium gas jet. The plasma wake structure is recovered using a Frequency-Domain Holography (FDH) and Frequency-Domain Shadowgraphy (FDS). As the gas density changes, the accelerated electron beams show variations in cross-section area, divergence, total charge, and peak energy. FDH phase reconstruction shows discontinuities and large phase jumps due to plasma electrons blown out by the pump pulse, probe pulse refraction, and nonlinear propagation in plasma. However, FDS amplitude reconstruction shows bright spots that yield information about bubble formation and evolution.

Item Type:
Journal Article
Journal or Publication Title:
High Energy Density Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3108
Subjects:
ID Code:
85809
Deposited By:
Deposited On:
04 Apr 2017 12:06
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 10:17