Open AccessDependence of the short-wavelength cutoff in the mid-IR pulse spectrum on the interaction length in SiO2 and CaF2
Author(s) -
I. Yu. Geints,
E. D. Zaloznaya,
В. О. Компанец,
А. Е. Дормидонов,
С. В. Чекалин,
В. П. Кандидов
Publication year - 2020
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 - 10.1088/1742-6596/1692/1/012016
Subject(s) - supercontinuum , wavelength , cutoff , filamentation , cutoff frequency , optics , pulse (music) , materials science , spectrum (functional analysis) , blueshift , physics , laser , photonic crystal fiber , quantum mechanics , detector , photoluminescence
This paper presents the results of experimental and numerical study of the anti-Stokes wing formation and the evolution of the short-wavelength cutoff in the 1900 nm pulse spectrum during its propagation and filamentation in fused silica and calcium fluoride. It is found that during the light bullet formation the short-wavelength cutoff in the supercontinuum spectrum is shifted to the anti-Stokes region with an increase in the nonlinear optical interaction length with the medium. However, change in the short-wavelength cutoff in the formed light bullet spectrum throughout its further propagation is insignificant.