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Crossover from self-defocusing to discrete trapping in nonlinear waveguide arrays

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Authors

Matuszewski, Michal
Rosberg, Christian
Neshev, Dragomir
Mitchell, Arnan
Trippenbach, Marek
Austin, M
Krolikowski, Wieslaw
Sukhorukov, Andrey
Kivshar, Yuri

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Volume Title

Publisher

Optical Society of America

Abstract

We predict a sharp crossover from nonlinear self-defocusing to discrete self-trapping of a narrow Gaussian beam with the increase of the refractive index contrast in a periodic photonic lattice. We demonstrate experimentally nonlinear discrete localization of light with defocusing nonlinearity by single site excitation in LiNbO3 waveguide arrays.

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Citation

Optics Express 14.1 (2006): 254-259

Source

Optics Express

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