Photoinduced Raman scattering in nominally pure lithium niobate crystals

Authors
Mouras, R Kostritskii, SM Bourson, P Aillerie, M Fontana, MD
Citation
R. Mouras et al., Photoinduced Raman scattering in nominally pure lithium niobate crystals, OPT MATER, 18(1), 2001, pp. 127-130
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
OPTICAL MATERIALS
ISSN journal
09253467 → ACNP
Volume
18
Issue
1
Year of publication
2001
Pages
127 - 130
Database
ISI
SICI code
0925-3467(200110)18:1<127:PRSINP>2.0.ZU;2-Z
Abstract
Raman scattering in nominally pure lithium niobate (LiNbO3) and lithium tan talate (LiTaO3) crystals has been studied at high-intensity excitation. Sig nificant photoinduced perturbations of Raman spectra of congruently melting LiNbO3 are discovered in contrast to Raman scattering observed in both nea rly stoichiometric LiNbO3 and congruently melting LiTaO3. Our study allows assignment of these perturbations to the photorefractive (PR) effect and, t herefore, comparison of the PR damage resistance of the crystals studied. ( C) 2001 Elsevier Science B.V. All rights reserved.