Study of laser induced plasma grating dynamics in gases

    Authors

    A. Jarnac; M. Durand; Y. Liu; B. Prade; A. Houard; V. Tikhonchuk;A. Mysyrowicz

    Comments

    Authors: contact us about adding a copy of your work at [email protected]

    Abbreviated Journal Title

    Opt. Commun.

    Keywords

    Non-linear optics; Filamentation Plasma grating; Ambipolar diffusion; Recombination; FEMTOSECOND FILAMENTATION; AIR FILAMENTS; PULSE; RECOMBINATION; GENERATION; IONIZATION; DISCHARGES; CHANNEL; Optics

    Abstract

    The relaxation of a plasma grating resulting from the interference of two crossing laser filaments in molecular and atomic gases is studied experimentally. Dissipation of the grating fringes is dominated by ambipolar diffusion in atomic gases and by a combination of ambipolar diffusion and collision-assisted free electron recombination in molecular gases. A theoretical model of the grating evolution is developed and compared to experimental results. Good agreement with simulations allows extracting plasma properties such as electron density, diffusion and recombination coefficients in Ne, Ar, Kr, Xe, N-2, O-2, CO2 and air at atmospheric pressure. (c) 2013 Elsevier B.V. All rights reserved.

    Journal Title

    Optics Communications

    Volume

    312

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    35

    Last Page

    42

    WOS Identifier

    WOS:000331455100007

    ISSN

    0030-4018

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