MODIFICATION OF UV-VIS OPTICAL-ABSORPTION PROPERTIES CAUSED BY MGO INCORPORATION IN MGO-DOPED LINBO3 CRYSTALS

Authors
JIN BM KIM IW WHITE WB BHALLA AS
Citation
Bm. Jin et al., MODIFICATION OF UV-VIS OPTICAL-ABSORPTION PROPERTIES CAUSED BY MGO INCORPORATION IN MGO-DOPED LINBO3 CRYSTALS, Materials letters, 30(5-6), 1997, pp. 385-388
Citations number
13
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
30
Issue
5-6
Year of publication
1997
Pages
385 - 388
Database
ISI
SICI code
0167-577X(1997)30:5-6<385:MOUOPC>2.0.ZU;2-2
Abstract
MgO-doped LiNbO3 single crystals were investigated in the UV-VIS range to study the effect of MgO in the LiNbO3 host. Congruent LiNbO3 has a n optical absorption edge of 3.75 eV. Analysis of the absorption edge gave an estimate of the indirect band gap for MgO-LiNbO3 solid solutio ns. The band gap shows an MgO threshold effect in the absorption coeff icient. An additional indirect transition at 2.2-2.5 eV was revealed w hen MgO was incorporated into the lithium niobate structure. This indi rect transition also has a MgO threshold effect around 5 mol% MgO.