Experiments on Gaussian beams and vortices in optically induced photonic lattices
Abbreviated Journal Title
J. Opt. Soc. Am. B-Opt. Phys.
SPATIALLY INCOHERENT-LIGHT; WAVE-GUIDE ARRAYS; DISCRETE SOLITONS; MODULATION INSTABILITY; PHOTOREFRACTIVE MEDIA; SCREENING SOLITONS; ANGULAR-MOMENTUM; PARTICLES; Optics
We investigate experimentally the propagation of fundamental Gaussian beams and vortices in a two-dimensional photonic lattice optically induced with partially coherent light. We focus on soliton-lattice interactions and vortex-lattice interactions when the lattice is operated in a nonlinear regime. In this case a host of novel phenomena is demonstrated, including soliton-induced lattice dislocation-deformation, soliton hopping and slow-down, and creation of structures akin to optical polarons. In addition, we observe that the nonlinear interaction between a vortex beam and a solitonic lattice leads to lattice twisting due to a transfer of the angular momentum carried by the vortex beam to the lattice. Results demonstrating a clear transition from discrete diffraction to the formation of two-dimensional, discrete fundamental and vortex solitons in a linear lattice are also included. (c) 2005 Optical Society of America.
Journal of the Optical Society of America B-Optical Physics
"Experiments on Gaussian beams and vortices in optically induced photonic lattices" (2005). Faculty Bibliography 2000s. 5063.