Concentration dependence of terahertz generation in jets of water and ethanol mixtures

A. N. Tcypkin; E. A Ponomareva; S. E. Putilin; S. V. Smirnov; S. A. Shtumpf; M. V. Melnik; Y. E; S. A. Kozlov; X.-C. Zhang

doi:10.1117/12.2501217

9 November 2018 Concentration dependence of terahertz generation in jets of water and ethanol mixtures

A. N. Tcypkin, E. A Ponomareva, S. E. Putilin, S. V. Smirnov, S. A. Shtumpf, M. V. Melnik, Y. E, S. A. Kozlov, X.-C. Zhang

Author Affiliations +

Proceedings Volume 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V; 1082603 (2018) https://doi.org/10.1117/12.2501217
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

In this work, we considered mixtures of ethanol and water in the form of jets as samples for THz generation based on laser-induced filamentation. The dependence of the output energy of terahertz radiation on the concentration of ethanol in water was experimentally studied. It is shown that the energy grows linearly, which can be explained by an increase in the ionization energy due to the linear replacement of low-efficient charge carriers (water) with highly-efficient (ethanol). The dependence of the THz generation on the optical angle of incidence on the mixture jets was also demonstrated. The results of this study can be further used to create universal source of terahertz radiation.

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A. N. Tcypkin, E. A Ponomareva, S. E. Putilin, S. V. Smirnov, S. A. Shtumpf, M. V. Melnik, Y. E, S. A. Kozlov, and X.-C. Zhang "Concentration dependence of terahertz generation in jets of water and ethanol mixtures", Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 1082603 (9 November 2018); https://doi.org/10.1117/12.2501217

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