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Communication Dans Un Congrès Année : 2015

Self-Organisation in Optical Media with Competing Nonlinearities

Résumé

I will present recent work on nonlinear light propagation in the presence of competing local and nonlocal nonlinearities. Such system could be realized in a gas of thermal alkaline atoms. Apart from spatial soliton formation, the different length scales of the nonlocality can give rise to filamentation and subsequent self-organised lattice formation in the beam profile, akin to the super-solid phase transition in Bose-Einstein condensates. The particular role of optical vorticity in the process of the pattern formation will be emphasized. After that, I will discuss creation and nonlinear dynamics of imprinted topologically complex knotted vortex lines in Bose-Einstein condensates.
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Dates et versions

hal-01183007 , version 1 (27-08-2015)

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  • HAL Id : hal-01183007 , version 1

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F Maucher, S Gardiner, I G Hughes, W Krolikowski, T Pohl, et al.. Self-Organisation in Optical Media with Competing Nonlinearities. 24th ANNUAL INTERNATIONAL LASER PHYSICS WORKSHOP, Aug 2015, Shanghai, China. ⟨hal-01183007⟩

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