Defect structure and increased photorefractive damage resistance of ZnO highly doped congruent LiNbO3:Ho:Yb single crystals
- Resource Type
- Article
- Authors
- Fan, Yexia; Xia, Shxing; Yu, Zemin; Zheng, Wei; Sun, Fenglian
- Source
- Optics Communications. Mar2013, Vol. 291, p313-316. 4p.
- Subject
- *PHOTOREFRACTIVE materials
*STRENGTH of materials
*ZINC oxide
*OPTICAL properties of lithium niobate
*SINGLE crystals
*ABSORPTION spectra
- Language
- ISSN
- 0030-4018
Abstract: The congruent ZnO highly doped LiNbO3:Ho:Yb:Zn crystals has been grown by the Czochralski methold. The IR transmission and UV–Vis absorption spectrum were determined and discussed the defect structure of LiNbO3:Ho:Yb:Zn crystals. The photorefractive damage resistance ability of LiNbO3:Ho:Yb:Zn crystals is studied by both of the Sénarmont compensation method and the transmitted beam pattern distortion method. The saturated value of the birefringence change of LiNbO3:Ho:Yb:Zn (9mol%) crystal is 0.82×10−5, which is six times smaller than that of congruent pure LiNbO3 crystal. The results of UV–Visible absorption, IR transmission spectra and photorefractive damage experiments of LiNbO3:Ho:Yb:Zn crystals are coherent and availably notarize that the photorefractive damage resistance threshold concentration of the Zn2+ ions doped in LiNbO3:Ho:Yb crystals is about 7mol% in the melt. [Copyright &y& Elsevier]