Stabilization of dark and vortex parametric spatial solitons.
We demonstrate that a weak defocusing Kerr effect in an optical medium with predominantly quadratic [or chi((2))] nonlinear response can eliminate the parametric modulational instability of plane waves, leading to the existence of stable two-wave dark and vortex spatial solitons.
Alexander
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TJ
Buryak
A V
AV
Kivshar
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