Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session NP11: Poster Session V: Laser-plasma Particle Acceleration; HEDP; Turbulence and Transport; DIII-D Tokamak; Machine Learning, Data Science (9:30am-12:30pm)
Wednesday, November 7, 2018
OCC
Room: Exhibit Hall A1&A
Abstract ID: BAPS.2018.DPP.NP11.9
Abstract: NP11.00009 : Coherent ultra-broadband laser-assisted injection radiation in a laser plasma accelerator*
Abstract 
Presenter:
Bo Miao
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
Authors:
Bo Miao
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
Linus Feder
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
Jared K Wahlstrand
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA, Engineering Physics Division, National Institute of Stan)
Andrew J Goers
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
George A Hine
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
Fatholah Salehi
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
Howard Michael Milchberg
(Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA)
Electron self-injection in self-modulated laser wakefield accelerator is observed to generate an intense coherent ultra-broadband and ultrashort radiation flash, consistent with the acceleration of electrons from nearly rest to almost the speed of light in a distance ~1µm [1]. We present measurements of the flash spectra, spectral coherence, pulse duration, polarization and angular distribution. These are characteristic of laser-assisted injection of off-axis electrons, which does not induce wave-breaking and preserves wake coherence.
[1] Goers, A. J., et al. "Multi-MeV electron acceleration by subterawatt laser pulses." Physical review letters 115.19 (2015): 194802.*This work is supported by the US Department of Energy, the National Science Foundation, and the Air Force Office of Scientific Research.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.NP11.9
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