Induced Li-site vacancies and non-linear optical behavior of doped lithium niobate crystals

Autor(en): Xue, D
Betzler, K
Hesse, H
Stichwörter: chemical bond method; CHEMICAL-BOND; DAMAGE-RESISTANT IMPURITY; DEFECT STRUCTURE; INDIUM; LINBO3 CRYSTALS; LITAO3; lithium niobate; Materials Science; Materials Science, Multidisciplinary; optical properties; Optics; REFRACTIVE-INDEXES; second harmonic generation
Erscheinungsdatum: 2001
Herausgeber: ELSEVIER SCIENCE BV
Journal: OPTICAL MATERIALS
Volumen: 16
Ausgabe: 3
Startseite: 381
Seitenende: 387
Zusammenfassung: 
Second-order non-linear optical (NLO) properties of doped lithium niobate (LN) crystals (abbreviated as M:LN, where M = Mg2+, Zn2+, and In3+, respectively) have been quantitatively studied from the chemical bond viewpoint. Our results show that the second-order NLO response of doped LN crystals decreases remarkably with increasing dopant concentration in the crystal. The approximately linear composition-property correlation in these doped LN crystals is quantitatively expressed in the current work. A comparison of the different influences of Mg, Zn and In dopants. respectively, shows that these dopants affect the NLO properties of LN crystals mainly via the number of Li-site vacancies induced. (C) 2001 Elsevier Science B.V. All rights reserved.
ISSN: 09253467
DOI: 10.1016/S0925-3467(00)00101-4

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