Observation of vortex-ring "discrete" solitons in 2D photonic lattices

Phys Rev Lett. 2004 Mar 26;92(12):123904. doi: 10.1103/PhysRevLett.92.123904. Epub 2004 Mar 25.

Abstract

We present the experimental observation of both on-site and off-site vortex-ring solitons of unity topological charge in a nonlinear photonic lattice, along with a theoretical study of their propagation dynamics and stability.