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We report the first experimental demonstration of demultiplexing capabilities of a 2-D waveguide grating consisting of a monolayer colloidal crystal deposited on a top of a planar waveguide. Self-assembled periodical structure with hexagonal symmetry is formed by crystallization of polystyrene colloidal particles. The experiments are performed in the 1550-nm wavelength region.
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Avrutsky et al. (2000) studied this question.
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