Two-dimensional multi-pole solitons in nonlocal nonlinear media

Abstract

We present the experimental observation of scalar multi-pole solitons in highly nonlocal nonlinear media, including dipole, tripole, quadrupole, and necklace-type solitons, organized as arrays of out-of-phase bright spots. These complex solitons are meta-stable, but with a large parameters range where the instability is weak, enabling their experimental observation. ; This work has been supported by the Israeli Science Foundation, the Generalitat de Catalunya, and by the Government of Spain through the Ramon-y Cajal program.