Inhibition of light tunneling in waveguide arrays

Details Inhibition of light tunneling in waveguide arrays Inhibition of light tunneling in waveguide arrays

2009-04-04

arxiv.org/abs/0904.0699v1

Physical Review Letters 102, 153901 (2009)

Physics

Optics

13 pages, 4 figures, to appear in Physical Review Letters

Scientific paper

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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