Generation of optical-terahertz solitons by a few-cycle laser pulse

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The generation of broadband terahertz radiation using an extremely short laser pulse of high intensity is considered. Using numerical simulation of the generalized Yajima-Oikawa system, it is shown that in the generation of an optical-terahertz soliton, in contrast to the quasi-monochromatic case, Kerr nonlinearity plays an important role for a low-period pulse, considering its dispersion.

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作者简介

А. Kalinovich

Lomonosov Moscow State University

编辑信件的主要联系方式.
Email: kalinovich@gmail.com
俄罗斯联邦, Moscow

S. Sazonov

Lomonosov Moscow State University; National Research Centre “Kurchatov Institute”; Moscow Aviation Institute (National Research University)

Email: kalinovich@gmail.com
俄罗斯联邦, Moscow; Moscow; Moscow

参考

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2. Fig. 1. Peak intensities (a) of the optical (solid line) and terahertz (dashed line) components, profiles of the optical (red) and terahertz (blue) components at different distances (b, c, d). Initial amplitude Ψ0 = 1, second- and third-order dispersion coefficients Dk2 = 0.5, Dk3 = 0.5, dispersion of the oscillatory nature of the terahertz signal g = 10–5, quadratic and cubic nonlinearities Dσ = 1, p = 0, number of oscillations N = 10.

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3. Fig. 2. Similar to Fig. 1, with the same parameters, except p = –1.

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4. Fig. 3. Peak intensities (a) of the optical (solid line) and terahertz (dashed line) components, profiles of the optical (red) and terahertz (blue) components at different distances (b, c, d). Initial amplitude Ψ0 = 1, second- and third-order dispersion coefficients Dk2 = 0.5, Dk3 = 0.5, dispersion of the oscillatory nature of the terahertz signal γ = 10–5, quadratic and cubic nonlinearities Dσ = 1, p = 0, number of oscillations N = 3.

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5. Fig. 4. Similar to Fig. 3, with the same parameters, except p = –1.

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