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Beam-coupling in tetragonal potassium Tantalate-Niobate crystals

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Abstract

Beam-coupling is investigated in a nominally pure tetragonal potassium Tantalate-Niobate (KTN) crystal as a function of external electric field, spatial frequency and light wavelength. The variation of these parameters leads to a change of the direction of energy transfer between the two recording beams. The experimental results can be consistently described by a one-center charge-transport model taking into account electron and hole contributions to photoconductivity and space-charge limitations due to the available trap density.

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Authors and Affiliations

  1. Universität Osnabrück, Fachbereich Physik, D-49069, Osnabrück, Germany

    S. Loheide, S. Riehemann & E. Krätzig

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  1. S. Loheide
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  2. S. Riehemann
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  3. E. Krätzig
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Loheide, S., Riehemann, S. & Krätzig, E. Beam-coupling in tetragonal potassium Tantalate-Niobate crystals. Appl. Phys. A 58, 343–347 (1994). https://doi.org/10.1007/BF00323607

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