Stability of focusing regions and its vortex-solitonic properties.
Opt Lett
; 45(18): 5121-5124, 2020 Sep 15.
Article
en En
| MEDLINE
| ID: mdl-32932467
Focusing regions, also known as caustic regions, are the singular solutions to the amplitude function of optical fields. Focusing regions are generated by the envelope curve of a set of critical points, which can be of attractor or repulsor type. The nature of the critical point depends on the refractive index. An important property of the critical points is that they present charge-like features. When a focusing region is generated in media with a random refractive index, current-like effects appear, and the evolution of the focusing regions follows a diffusion behavior. The morphology of the focusing regions may generate vortices or "eternal solutions" of solitonic type in a nonlinear medium. Herein, the condition under which these effects occur is analyzed and experimentally corroborated.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Lett
Año:
2020
Tipo del documento:
Article
Pais de publicación:
Estados Unidos