Photovoltaic gratings recorded in Praeseodymium doped La3Ga5SiO14 crystals

G. Pauliat; A. Slensky; V. Fridkin; G. Roosen

doi:10.1364/PMED.1990.FP1

Topical Meeting on Photorefractive Materials, Effects, and Devices II
Technical Digest Series (Optica Publishing Group, 1990),
paper FP1
•https://doi.org/10.1364/PMED.1990.FP1

Photovoltaic gratings recorded in Praeseodymium doped La₃Ga₅SiO₁₄ crystals

G. Pauliat, A. Slensky, V. Fridkin, and G. Roosen

Photorefractive Materials, Effects, and Devices II 1990

Aussois France
17–19 January 1990
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G. Pauliat, A. Slensky, V. Fridkin, and G. Roosen, "Photovoltaic gratings recorded in Praeseodymium doped La3Ga5SiO14 crystals," in Topical Meeting on Photorefractive Materials, Effects, and Devices II, Technical Digest Series (Optica Publishing Group, 1990), paper FP1.

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Abstract

Because of their unique sensitivity to optical polarization during recording of information, photovoltaic crystals are of particular interest for optical data processing. Light induced refractive index changes in La₃Ga₅SiO₁₅ : Pr^{3 +} piezoelectric crystals [1] was previously studied. Hereafter, we present and analyse the first recording of holograms in one of these samples. La₃Ga₅SiO₁₅ belongs to the point group symmetry 32. Our sample was grown by the Csochralski method. Its dimensions along the crystallographic xyz directions are 10.5×8.5×1.4 mm³. This sample presents a green color.

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