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arXiv · 0911.4231

Incoherent interaction of nematicons in bias-free liquid-crystal cells

Yana Izdebskaya·Vlad Shvedov·Anton Desyatnikov·Yuri Kivshar·Wieslaw Krolikowski·Gaetano Assanto
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Abstract

We study experimentally the propagation dynamics and interaction of a pair of mutually incoherent nematicons: spatial optical solitons in nematic liquid crystals. In contrast to earlier studies, we consider a bias-free liquid-crystal cell and compare the soliton interaction in copropagating and counterpropagating geometries. We analyze the dependence of nematicon interaction on input power and observe a direct manifestation of a long-range nonlocal nonlinearity. Attraction of counterpropagating solitons requires higher powers and longer relaxation times than that of copropagating nematicons due to losses-induced power asymmetry of counterpropagating nematicons.

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Yana Izdebskaya, Vlad Shvedov, Anton Desyatnikov, Yuri Kivshar, Wieslaw Krolikowski, Gaetano Assanto. 2009-11-22. Incoherent interaction of nematicons in bias-free liquid-crystal cells. https://doi.org/10.2971/jeos.2010.10008

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