Efficient electron injection into plasma waves using higher-orderlaser modes

Journal Article · Wed Aug 02 04:00:00 EDT 2006 · Physis of Plasmas

DOI:https://doi.org/10.1063/1.2409212· OSTI ID:902138

Michel, P; Esarey, E; Schroeder, C B; Shadwick, B A; Leemans, W P

Using higher-order transverse laser modes as drivers forplasma wave excitation, and, in particular, using a ring laser beam withmaximum intensity off-axis, results in reversal of the focusinganddefocusing phase regions in a laser wakefield accelerator. Thisresults in improved performance of self-trapping and laser injectionschemes. Specifically, the trapping threshold required foropticalinjection is decreased and the maximum energy gain of the trappedelectrons is increased. This scheme could also be of interest for thegeneration of ring electron beams or for beam conditioning.

• Research Organization: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of High Energy Physics
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 902138
• Report Number(s): LBNL--62022; BnR: KA1501020
• Journal Information: Physis of Plasmas, Journal Name: Physis of Plasmas Journal Issue: 11 Vol. 13
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
plasma laser acceleration