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Airy beam self-focusing in a photorefractive medium

Abstract : The unique bending and shape-preserving properties of optical Airy beams offer a large range of applications in for example beam routing, optical waveguiding, particle manipulation and plasmonics. In these applications and others, the Airy beam may experience nonlinear light-matter interactions which in turn modify the Airy beam properties and propagation. A well-known example is light self-focusing that leads to the formation of spatial soliton. Here, we unveil experimentally the self-focusing properties of a 1D-Airy beam in a photorefractive crystal under focusing conditions. The transient evolution involves both self-bending and acceleration of the initially launched Airy beam due to the onset of an off-shooting soliton and the resulting nonlocal refractive index perturbation. Both the transient and stationary self-focusing properties can be tuned by varying the bias electric field, the injected Airy beam power and the background illumination.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01462841
Contributor : Sébastien van Luchene <>
Submitted on : Thursday, February 9, 2017 - 8:50:55 AM
Last modification on : Wednesday, April 15, 2020 - 11:38:02 AM

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Noemi Wiersma, Nicolas Marsal, Marc Sciamanna, Delphine Wolfersberger. Airy beam self-focusing in a photorefractive medium. Scientific Reports, Nature Publishing Group, 2016, 6, pp.35078. ⟨10.1038/srep35078⟩. ⟨hal-01462841⟩

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