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LiTaO3 as holographic storage material

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Abstract

The optical storage properties of LiTaO3:Fe are investigated and compared with those of the isomorphous compound LiNbO3:Fe. Absorption, photocurrent, photoconductivity and holographic measurements are reported. In the case of photovoltaic writing similar results for LiTaO3- and LiNbO3-crystals are obtained. However, in the case of photoconductive writing using external electric fields LiTaO3:Fe-crystals yield much better results due to large photoconductivity values. Considering the recording sensitivity and the extremely large storage time LiTaO3:Fe turns out to be one of the most promising materials for photorefractive storage of volume phase holograms.

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Authors and Affiliations

  1. Philips GmbH, Forschungslaboratorium Hamburg, D-2000, Hamburg 54, Fed. Rep. Germany

    E. Krätzig & R. Orlowski

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  1. E. Krätzig
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  2. R. Orlowski
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Krätzig, E., Orlowski, R. LiTaO3 as holographic storage material. Appl. Phys. 15, 133–139 (1978). https://doi.org/10.1007/BF00928197

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