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Effect of gasdynamic processes on structure and threshold of laser spark initiated microwave discharge

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Abstract

The process of the laser-spark-assisted initiation of microwave (MW) discharge in the free space in air has been experimentally studied. It is established that, at a preset MW field intensity, the maximum time for which the laser spark retains its initiating ability increases with the laser pulse energy. In the interval of air pressures of 150–750 Torr, a significant decrease in the MW discharge initiation threshold and the period of retained initiating ability of laser spark are determined by laser-spark-induced gasdynamic perturbations.

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Authors and Affiliations

  1. Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia

    S. A. Afanas’ev, V. G. Brovkin, Yu. F. Kolesnichenko & I. Ch. Mashek

  2. St. Petersburg State University, St. Petersburg, Russia

    S. A. Afanas’ev, V. G. Brovkin, Yu. F. Kolesnichenko & I. Ch. Mashek

Authors
  1. S. A. Afanas’ev
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  2. V. G. Brovkin
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  3. Yu. F. Kolesnichenko
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  4. I. Ch. Mashek
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Corresponding author

Correspondence to V. G. Brovkin.

Additional information

Original Russian Text © S.A. Afanas’ev, V.G. Brovkin, Yu.F. Kolesnichenko, I.Ch. Mashek, 2011, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2011, Vol. 37, No. 15, pp. 40–46.

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Afanas’ev, S.A., Brovkin, V.G., Kolesnichenko, Y.F. et al. Effect of gasdynamic processes on structure and threshold of laser spark initiated microwave discharge. Tech. Phys. Lett. 37, 710–713 (2011). https://doi.org/10.1134/S1063785011080025

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  • DOI: https://doi.org/10.1134/S1063785011080025

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