Spatial solitons and shock waves in photorefractive crystals with nonlocal nonlinearityстатья
Информация о цитировании статьи получена из
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:An analytical model has been developed to describe both drift and diffusion mechanisms of nonlinear response (local and nonlocal components of nonlinearity) of photorefractive crystals (PRCs) on a microscopic level. Some types of stable self-consistent distributions of light intensity - bright and dark photorefractive spatial solitons - have been considered. Paths of their propagation (self-bending) have been calculated and a possibility of formation of a new type of soliton-like distributions - spatial shock waves - has been shown. Analysis of plane wave modulation instability has been performed and specific spatial scales of light distribution, resulting from self-action processes (fanning), have been calculated. All the analytical results have been confirmed using computer simulation.