Citation
L. Grigorjeva et al., Induced optical absorption and its relaxation in LiNbO3, RADIAT EFF, 150(1-4), 1999, pp. 193-198
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION EFFECTS AND DEFECTS IN SOLIDS
ISSN journal
10420150
→ ACNP
Volume
150
Issue
1-4
Year of publication
1999
Pages
193 - 198
Database
ISI
SICI code
1042-0150(1999)150:1-4<193:IOAAIR>2.0.ZU;2-C
Abstract
Electron pulse induced absorption spectra and their decay kinetics have bee
n investigated in LiNbO3 crystals with various Li/Nb ratios ranging from co
ngruent to stoichiometric composition. It is shown that the absorption spec
tra, the optical density and the decay kinetics depend on the Li/Nb ratio.
The rising front of the induced absorption is too fast to be resolved. The
room temperature decay, characterized by the half-lifetime Delta t, is fast
er in the stoichiometric crystal (similar to 750 ns) than in the congruent
crystal (similar to 3.5 mu s).