Inhibition of light tunneling in waveguide arrays.
نویسندگان
چکیده
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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عنوان ژورنال:
- Physical review letters
دوره 102 15 شماره
صفحات -
تاریخ انتشار 2009