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    Picosecond laser filamentation in air

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    Name:
    Schmitt-Sody_2016_New_J._Phys. ...
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    Final Published Version
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    Author
    Schmitt-Sody, Andreas
    Kurz, Heiko G
    Bergé, Luc
    Skupin, Stefan
    Polynkin, Pavel
    Affiliation
    Univ Arizona, Coll Opt Sci
    Issue Date
    2016-09-02
    Keywords
    laser filamentation
    picosecond laser pulses
    nonlinear propagation
    optical ionization
    
    Metadata
    Show full item record
    Publisher
    IOP PUBLISHING LTD
    Citation
    Picosecond laser filamentation in air 2016, 18 (9):093005 New Journal of Physics
    Journal
    New Journal of Physics
    Rights
    © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The propagation of intense picosecond laser pulses in air in the presence of strong nonlinear self-action effects and air ionization is investigated experimentally and numerically. The model used for numerical analysis is based on the nonlinear propagator for the optical field coupled to the rate equations for the production of various ionic species and plasma temperature. Our results show that the phenomenon of plasma-driven intensity clamping, which has been paramount in femtosecond laser filamentation, holds for picosecond pulses. Furthermore, the temporal pulse distortions in the picosecond regime are limited and the pulse fluence is also clamped. In focused propagation geometry, a unique feature of picosecond filamentation is the production of a broad, fully ionized air channel, continuous both longitudinally and transversely, which may be instrumental for many applications including laser-guided electrical breakdown of air, channeling microwave beams and air lasing.
    ISSN
    1367-2630
    DOI
    10.1088/1367-2630/18/9/093005
    Version
    Final published version
    Sponsors
    US Defense Threat Reduction Agency [HDTRA 1-14-1-0009]; US Air Force Office of Scientific Research [FA9550-12-1-0482, FA9550-16-1-0013]; US Department of Energy, Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Grand Equipement National pour le Calcul Intensif (GENCI) [2015-056129, 2016-057594]; Partnership for Advanced Computing in Europe (PRACE) [2014-112576]
    Additional Links
    http://stacks.iop.org/1367-2630/18/i=9/a=093005?key=crossref.6f6a06407772c630c9306d9b159384fb
    ae974a485f413a2113503eed53cd6c53
    10.1088/1367-2630/18/9/093005
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    UA Faculty Publications

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