Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Cold Optical Injection Producing Monoenergetic, Multi-GeV Electron Bunches

Abstract : A cold optical injection mechanism for a laser-plasma accelerator is described. It relies on a short, circularly polarized, low-energy laser pulse counterpropagating to and colliding with a circularly polarized main pulse in a low density plasma. Contrary to previously published optical injection schemes, injection is not caused here by electron heating. Instead, the collision between the pulses creates a spatially periodic and time-independent beat force. This force can block the longitudinal electron motion, leading to their entry and injection into the propagating wake. In a specific setup, we compute after acceleration over 0.6 mm, a 60 MeV, 50 pC electron bunch with 0.7 MeV rms energy spread, proving the interest of this scheme to inject electron bunches with a narrow absolute energy spread. Acceleration to 3 GeV with a rms spread smaller than 1% is computed after propagation over 3.8 cm in a plasma channel.
Document type :
Journal articles
Complete list of metadata

https://hal-polytechnique.archives-ouvertes.fr/hal-00498553
Contributor : Thuy Le Connect in order to contact the contributor
Submitted on : Wednesday, July 7, 2010 - 5:44:39 PM
Last modification on : Wednesday, May 11, 2022 - 3:22:04 PM

Identifiers

Collections

Citation

X. Davoine, E. Lefebvre, Clément Rechatin, Jérôme Faure, Victor Malka. Cold Optical Injection Producing Monoenergetic, Multi-GeV Electron Bunches. Physical Review Letters, American Physical Society, 2009, 102 (6), pp.065001. ⟨10.1103/PhysRevLett.102.065001⟩. ⟨hal-00498553⟩

Share

Metrics

Record views

43