Double helix formed by the braided nodal lines obtained by tracing the spatial locations of the vortex cores during propagation of the rotating tripole soliton in nonlocal medium.

Abstract: We demonstrate the existence of a broad class of higher-order rotating spatial solitons in nonlocal nonlinear media. We employ the generalized Hermite-Laguerre-Gaussian ansatz for constructing multivortex soliton solutions and study numerically their dynamics and stability. We discuss in detail the tripole soliton carrying two spiraling phase dislocations, or self-trapped optical vortices.

Keywords: optical vortices; vortex solitons; beams; motion

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