Experiments on Gaussian beams and vortices in optically induced photonic lattices
JOSA B, Vol. 22, Issue 7, pp. 1395-1405 (2005)
http://dx.doi.org/10.1364/JOSAB.22.001395
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Abstract
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.
© 2005 Optical Society of America
OCIS Codes
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.5940) Nonlinear optics : Self-action effects
(270.5530) Quantum optics : Pulse propagation and temporal solitons
Citation
Zhigang Chen, Hector Martin, Anna Bezryadina, Dragomir Neshev, Yuri S. Kivshar, and Demetrios N. Christodoulides, "Experiments on Gaussian beams and vortices in optically induced photonic lattices," J. Opt. Soc. Am. B 22, 1395-1405 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-7-1395
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