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Electrical fixing of photorefractive holograms in Sr(0.75) Ba(0.25)Nb(2)O(6)
Optics Letters
|October 14, 2009
Abstract:
Photorefractive holograms stored in Sr(0.75)Ba(0.25)Nb(2)O(6) crystals are electrically fixed at room temperature. The fixed holograms can be read out directly or after a positive-voltage pulse is applied that can dramatically enhance the diffraction efficiency. Single gratings as well as images are recorded and fixed.
