Microstructure and optical properties of Zn:Mn:Fe:LiNbO3 crystals by X. H. Zhen, Q. Li, and Y. H. Xu

Crystal Research and Technology

Cryst. Res. Technol. 41, 469 (2006) - Abstract -

Microstructure and optical properties of Zn:Mn:Fe:LiNbO₃ crystals

X. H. Zhen, Q. Li, and Y. H. Xu*

Department of Chemistry, Tsinghua University, Beijing 100084, P.R. China
*Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. China

Keywords	Zn:Mn:Fe:LiNbO₃ crystal, structure, optical damage resistance, holographic storage property
PACS	42.70.Ln, 61.70Y, 07.60.Rd
DOI	10.1002/crat.200510607

Zn:Mn:Fe:LiNbO₃ crystals were prepared by Czochralski technique. Its microstructure was measured and analyzed by UV-Vis absorption spectra. The optical damage resistance of Zn:Mn:Fe:LiNbO₃ crystals was characterized by the transmitted beam pattern distortion method. It increases remarkably when the concentration of ZnO is over a threshold concentration. Its value in Zn(7.0 mol%):Mn:Fe:LiNbO₃ crystal is about three orders of magnitude higher that in the Mn:Fe:LiNbO₃ crystal. The dependence of the defects on the optical damage resistance was discussed. The non-volatile holographic storage was realized in all crystals, and the sensitivity of the Zn(7.0 mol%):Mn:Fe:LiNbO₃ crystal is much higher than that of others.

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