Paper A60

Nonlinear beam steering by fractional vortex dipoles

Georgi Maleshkov, Dragomir N. Neshev, and Alexander Dreischuh


We study the ability of beams with complex phase dislocations to guide and steer signal beams in selffocusing nonlinear media. In particular, we report on the experimental demonstration of signal deflection by beams carrying step-screw phase dislocation in the form of a fractional vortex dipole. We show how the beam deflection can be ruled by the geometry and orientation of the dipole.