The dependence of terahertz signal and third harmonic amplitudes on mutual polarization of two-color pump components under optical breakdown of air

Alexander Ushakov; Roman Volkov; Andrey Savel'ev; Pavel Chizhov; Vladimir Bukin; Sergey V. Garnov

doi:10.1117/12.2023206

24 September 2013 The dependence of terahertz signal and third harmonic amplitudes on mutual polarization of two-color pump components under optical breakdown of air

Alexander Ushakov, Roman Volkov, Andrey Savel'ev, Pavel Chizhov, Vladimir Bukin, Sergey V. Garnov

Author Affiliations +

Proceedings Volume 8846, Terahertz Emitters, Receivers, and Applications IV; 884613 (2013) https://doi.org/10.1117/12.2023206
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

In this paper we measured the dependence of the signal of the third harmonic and terahertz radiation on the mutual polarization of the first and second harmonic to compare the mechanisms of their generation. For this purpose we used the output radiation of laser system Spitfire pro with the following parameters: pulse duration 35 fs, central wavelength 800nm, repetition rate 1kHz, energy of the first and second harmonic are 2mJ and 240mJ respectively. The radiation was focused by parabolic mirror with focal length 7,5 cm in air. The energy of terahertz and third harmonic radiation was measured by Holey cell and photomultiplier respectively.

Citation Download Citation

Alexander Ushakov, Roman Volkov, Andrey Savel'ev, Pavel Chizhov, Vladimir Bukin, and Sergey V. Garnov "The dependence of terahertz signal and third harmonic amplitudes on mutual polarization of two-color pump components under optical breakdown of air", Proc. SPIE 8846, Terahertz Emitters, Receivers, and Applications IV, 884613 (24 September 2013); https://doi.org/10.1117/12.2023206

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