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Title: Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration

Abstract

We report the development of corrugated slow-wave plasma guiding structures with application to quasi-phase-matched direct laser acceleration of charged particles. These structures support guided propagation at intensities up to 2x10{sup 17} W/cm{sup 2}, limited at present by our current laser energy and side leakage. Hydrogen, nitrogen, and argon plasma waveguides up to 1.5 cm in length with a corrugation period as short as 35 {mu}m are generated in extended cryogenic cluster jet flows, with corrugation depth approaching 100%. These structures remove the limitations of diffraction, phase matching, and material damage thresholds and promise to allow high-field acceleration of electrons over many centimeters using relatively small femtosecond lasers. We present simulations that show that a laser pulse power of 1.9 TW should allow an acceleration gradient larger than 80 MV/cm. A modest power of only 30 GW would still allow acceleration gradients in excess of 10 MV/cm.

Authors:
; ; ; ;  [1]
  1. Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, College Park, Maryland 20742 (United States)
Publication Date:
OSTI Identifier:
21100327
Resource Type:
Journal Article
Journal Name:
Journal of the Optical Society of America. Part B, Optical Physics
Additional Journal Information:
Journal Volume: 25; Journal Issue: 7; Other Information: DOI: 10.1364/JOSAB.25.00B137; (c) 2008 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0740-3224
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCELERATION; ARGON; CHARGED PARTICLES; DIFFRACTION; ELECTRONS; HYDROGEN; LASERS; LIGHT TRANSMISSION; NITROGEN; PLASMA; PLASMA GUNS; PULSES; SIMULATION; WAKEFIELD ACCELERATORS; WAVEGUIDES

Citation Formats

York, Andrew G, Layer, B D, Palastro, J P, Antonsen, T M, and Milchberg, H M. Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration. United States: N. p., 2008. Web. doi:10.1364/JOSAB.25.00B137.
York, Andrew G, Layer, B D, Palastro, J P, Antonsen, T M, & Milchberg, H M. Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration. United States. doi:10.1364/JOSAB.25.00B137.
York, Andrew G, Layer, B D, Palastro, J P, Antonsen, T M, and Milchberg, H M. Tue . "Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration". United States. doi:10.1364/JOSAB.25.00B137.
@article{osti_21100327,
title = {Ultrahigh-intensity optical slow-wave structure for direct laser electron acceleration},
author = {York, Andrew G and Layer, B D and Palastro, J P and Antonsen, T M and Milchberg, H M},
abstractNote = {We report the development of corrugated slow-wave plasma guiding structures with application to quasi-phase-matched direct laser acceleration of charged particles. These structures support guided propagation at intensities up to 2x10{sup 17} W/cm{sup 2}, limited at present by our current laser energy and side leakage. Hydrogen, nitrogen, and argon plasma waveguides up to 1.5 cm in length with a corrugation period as short as 35 {mu}m are generated in extended cryogenic cluster jet flows, with corrugation depth approaching 100%. These structures remove the limitations of diffraction, phase matching, and material damage thresholds and promise to allow high-field acceleration of electrons over many centimeters using relatively small femtosecond lasers. We present simulations that show that a laser pulse power of 1.9 TW should allow an acceleration gradient larger than 80 MV/cm. A modest power of only 30 GW would still allow acceleration gradients in excess of 10 MV/cm.},
doi = {10.1364/JOSAB.25.00B137},
journal = {Journal of the Optical Society of America. Part B, Optical Physics},
issn = {0740-3224},
number = 7,
volume = 25,
place = {United States},
year = {2008},
month = {7}
}