Few-cycle two-frequency spatiotemporal solitons in the absence of group velocity dispersion at one of the components

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Abstract

The second harmonic generation by few-cycle pulses is studied when the group velocity dispersion coefficient is equal to zero at the fundamental or doubled frequency. Using numerical simulation, it is shown that in both cases, in the presence of a negative third-order dispersion, the formation of stable two-frequency spatiotemporal solitons is possible.

About the authors

K. V. Koshkin

Lomonosov Moscow State University

Author for correspondence.
Email: koshkin.kv19@physics.msu.ru
Russia, 191991, Moscow

S. V. Sazonov

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

Email: koshkin.kv19@physics.msu.ru
Russia, 191991, Moscow; Russia, 123182, Moscow; Russia, 125993, Moscow

M. V. Komissarova

Lomonosov Moscow State University

Email: koshkin.kv19@physics.msu.ru
Russia, 191991, Moscow

A. A. Kalinovich

Lomonosov Moscow State University

Email: koshkin.kv19@physics.msu.ru
Russia, 191991, Moscow

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Copyright (c) 2023 К.В. Кошкин, С.В. Сазонов, М.В. Комиссарова, А.А. Калинович