Terahertz nonlinear waveguide-antenna driven by a femtosecond laser

A. S. Nikoghosyan; M. A. Kazaryan

doi:10.1117/12.2548968

11 December 2019 Terahertz nonlinear waveguide-antenna driven by a femtosecond laser

A. S. Nikoghosyan, M. A. Kazaryan

Proceedings Volume 11322, XIV International Conference on Pulsed Lasers and Laser Applications; 113222F (2019) https://doi.org/10.1117/12.2548968
Event: XIV International Conference on Pulsed Lasers and Laser Applications (AMPL-2019), 2019, Tomsk, Russian Federation

Abstract

An active waveguide-antenna in which the nonlinear crystal is the source of THz radiation is considered. The coherent terahertz radiation generated via optical rectification of 100 fs pulses of a Ti: sapphire laser in a system of a “nonlinear optical crystal partially filling the cross section of a metal rectangular waveguide” is investigated. It is shown that the fulfillment of the phase-matching condition and the optimization of the characteristics of radiation transmission through the integrated system “nonlinear crystal + waveguide” affect the efficiency of generation of THz radiation.

Citation Download Citation

A. S. Nikoghosyan and M. A. Kazaryan "Terahertz nonlinear waveguide-antenna driven by a femtosecond laser", Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113222F (11 December 2019); https://doi.org/10.1117/12.2548968

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