Fano resonances in saturable waveguide arrays

Details Fano resonances in saturable waveguide arrays Fano resonances in saturable waveguide arrays

2009-06-05

arxiv.org/abs/0906.1160v2

Optics Letters 34 (2009), 2721-2723

Nonlinear Sciences

Pattern Formation and Solitons

3 pages, 4 figures, submitted to Optics Letters

Scientific paper

We study a waveguide array with an embedded nonlinear saturable impurity. We solve the impurity problem in closed form and find the nonlinear localized modes. Next, we consider the scattering of a small-amplitude plane wave by a nonlinear impurity mode, and discover regions in parameter space where transmission is fully suppressed. We relate these findings with Fano resonances and propose this setup as a mean to control the transport of light across the array.

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