Abstract
We study the ability of beams with complex phase dislocations to guide and steer signal beams in self-focusing 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.
- Received 29 April 2009
DOI:https://doi.org/10.1103/PhysRevA.80.053828
©2009 American Physical Society