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Observation of Discrete Vortex Solitons in Optically Induced Photonic Lattices

Neshev, Dragomir; Alexander, Tristram J; Martin, Hector; Makasyuk, Igor; Chen, Zhanghai H; Ostrovskaya, Elena; Kivshar, Yuri


The discrete vortex solitons in two-dimensional optically induced photonic lattices were investigated. For a variety of input conditions and lattice parameters, the vortex was generated in a self-focusing nonlinear medium. It was observed that vortex experiences discrete diffraction, as more energy of the vortex beam transfers farther away from its center. The results confirm that the lattice stabilizes the vortex beam in the form of a nondiffracting four-lobe stationay structure with a screw...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.92.123903


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