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11 October 2005 Stable optical vortices in self-focusing nonlinear media
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Abstract
We analyze two different physical mechanisms that can stabilize optical vortices in self-focusing nonlinear media which are known to be unstable due to the azimuthal modulational instability. First, we show that vortices become stable in self-focusing nonlinear media with nonlocal nonlinearity. Second, we study optical vortices created by self-trapping of partially incoherent light with a phase dislocation and show that such partially incoherent optical vortices are stabilized when the spatial incoherence of light exceeds a certain threshold value.
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Yuri S. Kivshar "Stable optical vortices in self-focusing nonlinear media", Proc. SPIE 5958, Lasers and Applications, 59581M (11 October 2005); https://doi.org/10.1117/12.622545
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