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Nonlinear dynamics of two-color optical vortices in lithium niobate crystals

Dreischuh, Alexander; Neshev, Dragomir; Kolev, Vesselin Z; Saltiel, Solomon; Samoc, Marek; Krolikowski, Wieslaw; Kivshar, Yuri


We study experimentally the nonlinear dynamics of two-color optical vortex beams in the presence of second-harmonic generation combined with the effects of photo- and thermal refraction, as well as self- and induced-phase modulation.We use an iron-doped lithium niobate crystal as a nonlinear medium for the vortex propagation and observe experimentally, depending on the laser wavelength, a decay of a double-charge vortex, splitting and reshaping of background beam, pattern formation, and...[Show more]

CollectionsANU Research Publications
Date published: 2008-04-03
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.16.005406


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