Coherent ultra-broadband laser-assisted injection radiation in a laser plasma accelerator
POSTER
Abstract
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.Presenters
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Bo Miao
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
Authors
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Bo Miao
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
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Linus Feder
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
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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
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Andrew J Goers
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
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George A Hine
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
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Fatholah Salehi
Univ of Maryland-College Park, Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
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Howard Michael Milchberg
Univ of Maryland-College Park, Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA