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arXiv · 0904.0699

Inhibition of light tunneling in waveguide arrays

A. Szameit·Y. V. Kartashov·F. Dreisow·M. Heinrich·T. Pertsch·S. Nolte·A. Tunnermann·V. A. Vysloukh·F. Lederer·L. Torner
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Abstract

We report the observation of almost perfect light tunneling inhibition at the edge and inside laser-written waveguide arrays due to band collapse. When the refractive index of the guiding channels is harmonically modulated along the propagation direction and out-of-phase in adjacent guides, light is trapped in the excited waveguide over a long distance due to resonances. The phenomenon can be used for tuning the localization threshold power.

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A. Szameit, Y. V. Kartashov, F. Dreisow, M. Heinrich, T. Pertsch, S. Nolte, A. Tunnermann, V. A. Vysloukh, F. Lederer, L. Torner. 2009-04-04. Inhibition of light tunneling in waveguide arrays. https://doi.org/10.1103/physrevlett.102.153901

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