Open AccessSpatiotemporal localizations of light in quadratically nonlinear media with transversal inhomogeneity
Author(s) -
Ivan Chuprikov,
А. А. Калинович,
M. V. Komissarova,
С. В. Сазонов,
Irina G. Zakharova
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1730/1/012081
Subject(s) - transversal (combinatorics) , quadratic growth , dispersion (optics) , generalization , physics , optics , harmonic , zero (linguistics) , nonlinear system , second harmonic generation , group velocity , dispersion relation , mathematical analysis , mathematics , acoustics , quantum mechanics , laser , linguistics , philosophy
In the current study with the help of mathematical modeling we investigate the generation of second optical harmonic provided various group velocity dispersion (GVD) and third order dispersion effects taken into account. Varying values and signs of the third-order dispersion at quasi-zero values of GVD we reveal the conditions of light bullet formation and stable propagation. To this end we use a generalization of the well-known system of the second harmonic generation in quasi-optical approach. Particular attention is paid to the case when GVD at the second harmonic is close to zero. In addition, we investigate these cases using both focusing and defocusing waveguide which means the presence of transversal inhomogeneity.