Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1772713 | High Energy Density Physics | 2010 | 4 Pages |
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.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Astronomy and Astrophysics
Authors
P. Dong, S.A. Reed, S.A. Yi, S.Y. Kalmykov, G. Shvets, M.C. Downer, N.H. Matlis, W.P. Leemans, C. McGuffey, S.S. Bulanov, V. Chvykov, G. Kalintchenko, K. Krushelnick, A. Maksimchuk, T. Matsuoka, A.G.R. Thomas, V. Yanovsky,