Photorefractive properties of lithium niobate single crystals doped with copper

被引：7

作者：

Sidorov, N. V. ^{[1
]}

Yanichev, A. A. ^{[1
]}

Gabain, A. A. ^{[1
]}

Palatnikov, M. N. ^{[1
]}

Smirnov, A. N. ^{[2
]}

机构：

[1] Russian Acad Sci, IV Tananaev Inst Chem & Technol Rare Elements & M, Kola Sci Ctr, Apatity 184209, Russia

[2] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 196140, Russia

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2013年 / 80卷 / 02期

关键词：

Raman scattering; ultraviolet; visible; and near infrared; stoichiometric; congruent; Cu-doped lithium niobate single crystals; photorefractive effect; defects; charge exchange of Cu cations; LINBO3-FE;

D O I：

10.1007/s10812-013-9750-3

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Raman scattering with excitation in the ultraviolet, visible, and near infrared and electron paramagnetic resonance are used to study the photorefractive properties of nominally pure, stoichiometric (R = Li/Nb = 1) single crystals of lithium niobate grown from a melt with 58.6 mol% Li2O (LiNbO(3)stoich), nominally pure crystals with a congruent composition (LiNbO(3)congr, R = 0.946), and Cu-doped crystals with a congruent composition (LiNbO3:Cu, [Cu] = 0.015 mass%). Optical irradiation is found to cause charge exchange of copper cations, Ca2+ -> Cu, in the LiNbO3:Cu ([Cu] = 0.015 mass%) crystals. Thus, crystalline LiNbO3:Cu ([Cu] = 0.015 mass%) manifests photorefractive properties as a result of charge exchange of copper ions during laser irradiation, in addition to the contribution from intrinsic defects with localized electrons previously observed in LiNbO(3)stoich and LiNbO(3)congr.

引用

页码：226 / 231

页数：6

共 12 条

[1]

[Антонычева Е.А. Antonycheva E.A.], 2010, [Журнал прикладной спектроскопии, Zhurnal prikladnoi spektroskopii], V77, P89

[2]

Antonycheva E. A., 2010, ZH TEKH FIZ, V80, P125

[3]

DMITRIK GN, 1985, OPT SPEKTROSK+, V58, P1355

[4]

Goronovskii I.T., 1987, BRIEF HDB CHEM

[5]

Gunter P., 2007, PHOTOREFRACTIVE MAT, V1

[6]

KOROTKOV PA, 1982, OPT SPEKTROSK+, V52, P572

[7]

MAKSIMENKO VA, 2008, PHOTOINDUCED PROCESS

[8]

Palatnikov M. N., 2010, THESIS

[9]

Sidorov N. V., 2010, NOVYE TEKHNOLOGII, V28, P32

[10]

Sidorov N. V., 2003, LITHIUM NIOBATE DEFE

← 1 2 →