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Refraction of nonlinear light beams in nematic liquid crystals

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Original languageEnglish
Article number1250033
JournalJournal of Nonlinear Optical Physics and Materials
Issue number3
Publication statusPublished - Sep 2012
Publication typeA1 Journal article-refereed


We use modulation theory to analyze the interaction of optical solitons and vortices with a dielectric interface between two regions of nematic liquid crystals. In the analysis we consider the role of nonlocality, anisotropy and nonlinear reorientation and compare modulation theory results with numerical results. Upon interacting with the interface, nematicons undergo transverse distortion but remain stable and eventually return to a steady state, whereas vortices experience an enhanced instability and can break up into bright beams or solitary waves.


  • Liquid crystal, modulation theory, nematicon, refraction, soliton