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VOLUME 60 (1994) | ISSUE 7 | PAGE 511
Writing a photorefractive hologram with an external field parallel to the interference fringes
A method for writing holograms in photorefractive crystals is proposed. An alternating external field is applied in the direction perpendicular to the wave vector of the interference pattern. The difference between the frequencies of the interfering beams is equal to the frequency of the external field. © 1994 American Institute of Physics.