Hydroxyl ions in stoichiometric LiNbO3 crystals doped with optical damage resistant ions

被引：16

作者：

Kovacs, Laszlo ^{[1
]}

Szaller, Zsuzsanna ^{[1
]}

Lengyel, Krisztian ^{[1
]}

Corradi, Gabor ^{[1
]}

机构：

[1] Hungarian Acad Sci, Wigner Res Ctr Phys, Inst Solid State Phys & Opt, H-1121 Budapest, Hungary

来源：

OPTICAL MATERIALS | 2014年 / 37卷

基金：

匈牙利科学研究基金会;

关键词：

Lithium niobate; Infrared spectra; Hydroxyl ion; Photorefractive damage resistance; INFRARED-ABSORPTION; OH; BAND; THRESHOLD;

D O I：

10.1016/j.optmat.2014.04.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The infrared spectra of stoichiometric LiNbO3 crystals containing photorefractive damage resistant ions (e.g. M = Mg, Zn, Sc, In, Hf, Zr or Sn) above their threshold concentration reveal OH- absorption bands absent in undoped crystals. The bands are attributed to stretching vibrations of hydroxyl ions in M-Nb(n+) OH- (n = 2, 3 or 4) type defect complexes. The higher the valency of the dopant ion the lower the observed frequency of the hydroxyl vibration in the complex, and the closer the O-H bond direction to the oxygen plane perpendicular to the crystallographic c axis of the crystal. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：55 / 58

页数：4