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We present the first observation of defect dynamics in 2D nonlinearly interacting photonic quasicrystals. In addition, we present experiments showing linear ldquodiscreterdquo diffraction from various lattice sites and lattice solitons in photonic quasicrystals.
Electroholographic switches in which the applied field is perpendicular to the grating vector so that the Bragg condition is electrically tuned are presented. Tunability of 7 nm can be accomplished in a single grating.
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