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Defect structure and optical fixing holographic storage of Mg:Mn:Fe:LiNbO3 crystals

✍ Scribed by Zheng Wei; Gui Qiang; Xu Yuheng

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
295 KB
Volume
43
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

Mg:Mn:Fe:LiNbO~3~ crystals were grown by the Czochralski method. The defect structure was analyzed by UV‐vis spectra and IR spectra. The holographic storage of Mg:Mn:Fe:LiNbO~3~ crystals was measured by the two color fixed method. The results show that with the increase of MgO doping concentration, the writing time becomes shorter, the dynamic range decreases, photorefractive sensitivity increases and fixing diffraction efficiency decreases. When the MgO doping concentration exceeds 4.5 mol%, the fixing diffraction efficiency approaches zero. The effect of doping Mg ions on the holographic storage properties of Mn:Fe:LiNbO~3~ crystals is discussed. (Β© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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