Spatiotemporal reshaping and compression of high intensity femtosecond pulses

V. I. Trunov; E. V. Pestryakov; V. V. Petrov; A. V. Kirpichnikov; S. A. Frolov; D. S. Harenko; S. N. Bagayev

doi:10.1117/12.750075

17 July 2007 Spatiotemporal reshaping and compression of high intensity femtosecond pulses

V. I. Trunov, E. V. Pestryakov, V. V. Petrov, A. V. Kirpichnikov, S. A. Frolov, D. S. Harenko, S. N. Bagayev

Proceedings Volume 6725, ICONO 2007: Nonlinear Space-Time Dynamics; 67251E (2007) https://doi.org/10.1117/12.750075
Event: The International Conference on Coherent and Nonlinear Optics, 2007, Minsk, Belarus

Abstract

Experimental results of self-compression of femtosecond pulses under filamentation in argon and xenon are presented. The mode of a self-compression in xenon is realized for the first time. The dependence of the spectrum broadening from pressure of these gases, input energy and focusing parameters are studied in detail. The spectral and temporary profiles of the first and the second filaments at multiple filamentation are analyzed. Features of multiple filamentation are revealed in xenon. For the first time experimentally the effect of restriction a number of filaments and effective swapping of energy from one filament to another (more than 70 % of energy in two-filament mode without increasing of their amount is founded). The possible mechanism of the phenomenon related with the saturation of the third order nonlinearity in xenon and influence of the higher fifth-order susceptibility χ⁽⁵⁾ are discussed.

Citation Download Citation

V. I. Trunov, E. V. Pestryakov, V. V. Petrov, A. V. Kirpichnikov, S. A. Frolov, D. S. Harenko, and S. N. Bagayev "Spatiotemporal reshaping and compression of high intensity femtosecond pulses", Proc. SPIE 6725, ICONO 2007: Nonlinear Space-Time Dynamics, 67251E (17 July 2007); https://doi.org/10.1117/12.750075

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