Observation and thermal fixing of holographic gratings in lead barium niobate crystal

We report what we believe to be the first observation of photorefractive gratings in lead barium niobate (Pb(1-x)Ba (x)Nb(2)O>( 6) ; PBN). A diffraction efficiency of 9% and a beam-coupling coefficient of 9 cm(-1) are obtained. After thermal fixing a grating of 0.5% is revealed at room temperatur...

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Bibliographic Details
Published in:Optics letters 1997-02, Vol.22 (3), p.187-189
Main Authors: Liu, A Y, Bashaw, M C, Lee, M, Feigelson, R S
Format: Article
Language:English
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Summary:We report what we believe to be the first observation of photorefractive gratings in lead barium niobate (Pb(1-x)Ba (x)Nb(2)O>( 6) ; PBN). A diffraction efficiency of 9% and a beam-coupling coefficient of 9 cm(-1) are obtained. After thermal fixing a grating of 0.5% is revealed at room temperature. We can improve this diffraction efficiency by optimizing fixing temperature, timing, and material parameters.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.22.000187