Tracking azimuthons in nonlocal nonlinear media

TL;DR

This paper presents a comprehensive method to identify and analyze azimuthons, rotating solitons, in nonlocal nonlinear media, revealing their formation, properties, and relation to vortex solitons.

Contribution

It introduces an exhaustive approach to find azimuthons via internal modes of vortex solitons in nonlocal media, expanding understanding of their formation and characteristics.

Findings

Azimuthons can be derived from vortex solitons using internal mode analysis.

Formation of azimuthons with various vorticities demonstrated.

Properties of azimuthons explained through the strongly nonlocal limit.

Abstract

We study the formation of azimuthons, i.e., rotating spatial solitons, in media with nonlocal focusing nonlinearity. We show that whole families of these solutions can be found by considering internal modes of classical non-rotating stationary solutions, namely vortex solitons. This offers an exhaustive method to identify azimuthons in a given nonlocal medium. We demonstrate formation of azimuthons of different vorticities and explain their properties by considering the strongly nonlocal limit of accessible solitons.