Growth and spectral and luminescent properties of a new Cr4+: LiAlGeO4 nonlinear crystal

Authors
Subbotin, KA Smirnov, VA Zharikov, EV Gaister, AV Shcherbakov, IA Iskhakova, LD
Citation
Ka. Subbotin et al., Growth and spectral and luminescent properties of a new Cr4+: LiAlGeO4 nonlinear crystal, OPT SPECTRO, 89(1), 2000, pp. 56-61
Citations number
19
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
OPTICS AND SPECTROSCOPY
ISSN journal
0030400X → ACNP
Volume
89
Issue
1
Year of publication
2000
Pages
56 - 61
Database
ISI
SICI code
0030-400X(200007)89:1<56:GASALP>2.0.ZU;2-C
Abstract
Single crystals of a new promising laser material, Cr4+-doped germanium euc ryptite Cr4+:LiAlGeO4, are grown from the melt for the first time. The crys tals grown exhibit nonlinear optical properties. Absorption and luminescenc e spectra of the crystals and their luminescence decay are studied at vario us temperatures. The luminescence lifetime at 1.2 mu m at 300 K is 10 mu s. Active centers in the crystal are identified, and crystal field parameters are estimated. (C) 2000 MAIK "Nauka/Interperiodica".