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Enhancement of electron injection in laser wakefield acceleration using auxiliary interfering pulses
- Source :
- New Journal of Physics, Vol 14, Iss 10, p 103015 (2012)
- Publication Year :
- 2012
- Publisher :
- IOP Publishing, 2012.
-
Abstract
- A relatively simple interfering-pulses-assisted laser wakefield acceleration (IPA-LWFA) scheme is proposed for enhancing the charge of the LWFA electron bunch. Prior to the short intense pump pulse, two long low-intensity auxiliary laser pulses first interact in the plasma and excite a slow electron plasma wave at the beat frequency. The weak but finite-amplitude plasma wave energizes the affected electrons and acts like a slow-moving grating. Particle-in-cell simulations show that electron trapping in the wakefield of the pump laser pulse, which arrives at a later time, can be significantly enhanced. The charge of the IPA-LWFA electron bunch depends mainly on the intensity of the auxiliary pulses and the time delay of the pump laser.
Details
- Language :
- English
- ISSN :
- 13672630
- Volume :
- 14
- Issue :
- 10
- Database :
- Directory of Open Access Journals
- Journal :
- New Journal of Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.39b296a0762345cdb1fb3f22f71fdb79
- Document Type :
- article
- Full Text :
- https://doi.org/10.1088/1367-2630/14/10/103015