Monoenergetic electron beam optimization in the bubble regime

Victor Malka (1) , Jérôme Faure (1) , Yannick Glinec (1) , A. Pukhov (2) , Jean-Philippe Rousseau (1)

1 LOA - Laboratoire d'optique appliquée
2 Institut für Theoretische Physik

Within the last decade, laser-plasma based accelerators have been able to deliver electron beams with Maxwellian energy distributions characterized by effective temperatures in the range of 1–20 MeV. Changing the interaction parameters, the electron beam quality was improved. Especially, matching the interaction length to the dephasing length was crucial to produce an extremely high quality electron beam with a quasimonoenergetic distribution at 170 MeV. The optimization of these distributions is presented, as well as comparisons with three-dimensional particle-in-cell code simulations.

Keywords: plasma accelerators; electron beams; plasma temperature; plasma light propagation; plasma simulation

Domains: Optics [physics.optics]

Victor Malka, Jérôme Faure, Yannick Glinec, A. Pukhov, Jean-Philippe Rousseau. Monoenergetic electron beam optimization in the bubble regime. Physics of Plasmas, 2005, 12 (5), pp.056702. ⟨10.1063/1.1869498⟩. ⟨hal-00508725⟩