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We present here the realization of fast electrically switchable holographic optical elements based on electric field multiplexing of volume holograms in lithium niobate crystals. We demonstrate the electrical control of holographic lenses and holographic mirrors for fast switching of the focal length and the direction of the reconstructed light beam, respectively. The switching time in the range of...
We demonstrate the equivalence of the electric field and spectral multiplexing (SM) technique for holographic recording in photorefractive materials. The proposed technique of electric field multiplexing (EFM) provides a spectral selectivity of recorded holographic filters up to a few picometers.
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