The Bubble regime of laser-plasma acceleration: monoenergetic electrons and the scalability

Details The Bubble regime of laser-plasma acceleration: monoenergetic electrons and the scalability The Bubble regime of laser-plasma acceleration: monoenergetic electrons and the scalability

2004-09-19

arxiv.org/abs/physics/0409089v1

Physics

Plasma Physics

accepted for publication in Plasma Physics and Controlled Fusion, 2004

Scientific paper

10.1088/0741-3335/46/12B/016

The Bubble regime of electron acceleration in ultra-relativistic laser plasma is considered. It has been shown that the bubble can produce ultra-short dense bunches of electrons with quasi-monoenergetic energy spectra. The first experiment in this regime done at LOA has confirmed the peaked electron spectrum (J. Faure, et al., {\it submitted}, 2004). The generated electron bunch may have density an order of magnitude higher than that of the background plasma. The bubble is able to guide the laser pulse over many Rayleigh lengths, thus no preformed plasma channel is needed for high-energy particle acceleration in the bubble regime. In the present work we discuss a simple analytical model for the bubble fields as well as the scaling laws.

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