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

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

doi:10.2971/jeos.2010.10008

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

Yana Izdebskaya^*, Vlad Shvedov, Anton Desyatnikov, Wieslaw Krolikowski, Gaetano Assanto, Yuri Kivshar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

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.

Original language	English
Article number	10008
Journal	Journal of the European Optical Society-Rapid Publications
Volume	5
DOIs	https://doi.org/10.2971/jeos.2010.10008
Publication status	Published - 2010

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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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AU - Izdebskaya, Yana

AU - Shvedov, Vlad

AU - Desyatnikov, Anton

AU - Krolikowski, Wieslaw

AU - Assanto, Gaetano

AU - Kivshar, Yuri

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

KW - Liquid crystals

KW - Nematicons

KW - Nonlinear optics

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DO - 10.2971/jeos.2010.10008

M3 - Article

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JO - Journal of the European Optical Society-Rapid Publications

JF - Journal of the European Optical Society-Rapid Publications

M1 - 10008

ER -

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

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