Vortex solitons in an off-resonant Raman medium
A. V. Gorbach, D. V. Skryabin, and C. N. Harvey
TL;DR
This paper explores the existence and stability of vortex solitons in a Raman medium, analyzing their formation, stability, and associated helical beams in the context of frequency and vortex comb generation.
Contribution
It provides a detailed analysis of coupled vortex solitons in a Raman medium, highlighting conditions for their stability and formation of complex spatio-temporal structures.
Findings
Stable and unstable vortex solitons identified
Formation of spatio-temporal helical beams demonstrated
Conditions for frequency and vortex comb generation established
Abstract
We investigate existence and linear stability of coupled vortex solitons supported by cascaded four-wave mixing in a Raman active medium excited away from the resonance. We present a detailed analysis for the two- and three-component vortex solitons and demonstrate the formation of stable and unstable vortex solitons, and associated spatio-temporal helical beams, under the conditions of the simultaneous frequency and vortex comb generation.
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