УДК: 535.3, 535: 530.182

Strong-field dynamics of a light pulse composed of a small number of vibrations when plasma is excited in a dielectric medium

Stumpf, S.A., Kozlov, S.A., Korolev, A.A.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Штумпф С.А., Козлов С.А., Королев А.А. Динамика сильного поля светового импульса из малого числа колебаний в условиях возбуждения плазмы в диэлектрической среде // Оптический журнал. 2013. Т. 80. № 5. С. 11–16.

Stumpf S.A., Kozlov S.A., Korolev A.A. Strong-field dynamics of a light pulse composed of a small number of vibrations when plasma is excited in a dielectric medium [in Russian] // Opticheskii Zhurnal. 2013. V. 80. № 5. P. 11–16.

For citation (Journal of Optical Technology):

S. A. Shtumpf, Yu. A. Shpolyansky, A. A. Korolev, and S. A. Kozlov, "Strong-field dynamics of a light pulse composed of a small number of vibrations when plasma is excited in a dielectric medium," Journal of Optical Technology. 80(5), 269-273 (2013). https://doi.org/10.1364/JOT.80.000269

Abstract:

The paper discusses the spectral-broadening processes of femtosecond pulses in the high-frequency region when optical breakdown occurs in a gaseous medium. It is shown that the spectrum of the generated high-frequency radiation contains several isolated maxima whose positions are determined by the properties of the medium and by the thickness of the layer of gas. An illustration is given of the role of taking into account the dispersion of the nonlinear refractive index in the high-frequency region of the optical range of the spectrum when optical breakdown is being modelled. The results of the modelling are compared with experimental data from an investigation of the optical breakdown of a layer of sulfur hexafluoride.

Keywords:

femtosecond pulses, optical breakdown, spectrum broadening, dispersion of nonlinear refractive index coefficient

Acknowledgements:

This work was supported by Grant 16.740.11.0459 of the Ministry of Education and Science of the Russian Federation and Grant 11-02-01346a of the Russian Foundation for Basic Research.

OCIS codes: 140.3300, 140.3440

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