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Proceedings Paper

The dependence of terahertz signal and third harmonic amplitudes on mutual polarization of two-color pump components under optical breakdown of air
Author(s): Alexander Ushakov; Roman Volkov; Andrey Savel'ev; Pavel Chizhov; Vladimir Bukin; Sergey V. Garnov
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Paper 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.

Paper Details

Date Published: 24 September 2013
PDF: 8 pages
Proc. SPIE 8846, Terahertz Emitters, Receivers, and Applications IV, 884613 (24 September 2013); doi: 10.1117/12.2023206
Show Author Affiliations
Alexander Ushakov, Lomonosov Moscow State Univ. (Russian Federation)
Roman Volkov, Lomonosov Moscow State Univ. (Russian Federation)
Andrey Savel'ev, Lomonosov Moscow State Univ. (Russian Federation)
Pavel Chizhov, A. M. Prokhorov General Physics Institute (Russian Federation)
Vladimir Bukin, A. M. Prokhorov General Physics Institute (Russian Federation)
Sergey V. Garnov, A. M. Prokhorov General Physics Institute (Russian Federation)


Published in SPIE Proceedings Vol. 8846:
Terahertz Emitters, Receivers, and Applications IV
Manijeh Razeghi; Alexei N. Baranov; John M. Zavada, Editor(s)

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