Self-induced mode transformation in nonlocal nonlinear media

Yana V. Izdebskaya, Anton S. Desyatnikov, Yuri S. Kivshar

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Abstract

We report on the first experimental observation of self-induced optical mode transformations in nonlocal nonlinear media. We show that the quadrupole Hermite-Gaussian mode experiences complex nonlinear dynamics in a nematic liquid crystal, including power-dependent conversion into a radially symmetric Laguerre-Gaussian mode. The physical mechanism responsible for self-induced transformation is the excitation of internal modes of a metastable quadrupole nonlocal soliton and its subsequent transmutation into a robust soliton with a bright peak surrounded by a bright ring. We also observe the onset of transformations of higher-order modes, proving the generic character of this nonlinear phenomenon.

Original languageEnglish
Article number123902
JournalPhysical Review Letters
Volume111
Issue number12
DOIs
Publication statusPublished - Sep 18 2013

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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