7 September 2016 Bistable mode of THG for femtosecond laser pulse
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Abstract
We develop an analytical solution for the THG problem with taking into account self- and cross- modulation of interacting waves. Consideration is made in the framework of long pulse duration approximation and plane wave approximation. Using the original approach, we obtain the explicit solution of Schrödinger equations describing the THG in the framework under consideration both for zero-value amplitude of a wave with triple frequency and for its non-zero value. It should be stressed that the main feature of our approach consists in conservation laws using, which correspond to wave interaction process. We found various regimes of frequency trebling and showed that the THG process possesses a bistable feature under certain condition. We found out also the THG mode, at which the intensities of interacting waves do not change along their propagation coordinate. This leads to existence of soliton solution for THG of femtosecond laser pulses.
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Vyacheslav A. Trofimov, Vyacheslav A. Trofimov, Pavel S. Sidorov, Pavel S. Sidorov, Igor E. Kuchik, Igor E. Kuchik, } "Bistable mode of THG for femtosecond laser pulse", Proc. SPIE 9958, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications X, 99580D (7 September 2016); doi: 10.1117/12.2238871; https://doi.org/10.1117/12.2238871
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