Multiphoton photoluminescence contrast in switched Mg:LiNbO3 and Mg:LiTaO3 single crystals

被引：22

作者：

Reichenbach, P. ^{[1
]}

Kaempfe, T. ^{[1
]}

Thiessen, A. ^{[1
]}

Haussmann, A. ^{[1
]}

Woike, T. ^{[2
]}

Eng, L. M. ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Angew Photophys, D-01069 Dresden, Germany

[2] Tech Univ Dresden, Inst Strukt Phys, D-01069 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 12期

关键词：

LITHIUM-NIOBATE; LINBO3;

D O I：

10.1063/1.4896579

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observed a multiphoton luminescence contrast between virgin and single-switched domains in Mg-doped LiNbO3 (LNO) and LiTaO3 (LTO) single crystals with different doping levels of 0-7 mol. % and 0-8 mol. %, respectively. A luminescence contrast in the range of 3% was measured between as-grown and electrically inverted domain areas in Mg:LNO samples, while the contrast reaches values of up to 30% for the Mg: LTO case. Under annealing, an exponential decay of the domain contrast was observed. The activation energy of about 1 eV being determined for the decay allowed a comparison with reported activation energies of associated defects, clearly illustrating a strong connection between thermal contrast decay and the H+ and Li+-ion mobility. Finally, performing similar experiments on oxidized samples undoubtedly demonstrated that the origin of the reported luminescence contrast is strongly connected with lithium ions. (C) 2014 AIP Publishing LLC.

引用

页数：5

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