Observation of THz emission from a laser-plasma accelerated electron bunch crossing a plasma-vacuum boundary

Journal Article · Tue Apr 15 00:00:00 EDT 2003 · Physical Review Letters

OSTI ID:823209

Leemans, W P; Geddes, C G.R.; Faure, J; Toth, Cs; van Tilborg, J; Schroeder, C B; Esarey, E; Fubiani, G; Auerbach, D; Marcelis, B; Carnahan, M A; Kaindl, R A; Byrd, J; Martin, M C

Coherent radiation in the 0.3 - 3 THz range has been generated from femto second electron bunches at a plasma-vacuum boundary via transition radiation. The bunches produced by a laser-plasma accelerator contained 1.5 nC of charge. The THz energy per pulse within a limited 30 mrad collection angle was 3.5 nJ and scaled quadratically with bunch charge, consistent with coherent emission. Modeling indicates that this broadband source produces about 0.3 muJ per pulse within a 100 mrad angle, and that increasing the transverse plasma size and electron beam energy could provide more than 100 muj/pulse.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. High Energy Physics (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 823209
• Report Number(s): LBNL-52554; PRLTAO; R&D Project: 455401; TRN: US0401677
• Journal Information: Physical Review Letters, Vol. 9107, Issue 7; Other Information: Journal Publication Date: 08/15/2003; PBD: 15 Apr 2003; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
COHERENT RADIATION
ELECTRON BEAMS
ELECTRONS
PLASMA
SIMULATION
TRANSITION RADIATION
BEAM LASER PLASMA