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. Experimental and theoretical studies of the photovoltaic shift in the position of the diffraction efficiency maximum of holograms recorded in LiNbO3 for the case of optimal electric field multiplexing are described. The experimental data are explained using a model in which the bulk photovoltaic field is excited in a crystal that is electrically connected with a low loading resistance. We suggest...
. Theoretical and experimental investigations of electric field multiplexing and selectivity of reflection volume holograms in LiNbO3 are reported. Recording of at least five holograms is demonstrated. Equivalent spectral selectivity Δλ≈4.5 pm for the case of three electrically tunable holograms and Δλ≈9 pm for the case of five electrically tunable holograms are estimated.
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