INFRARED TO VISIBLE FREQUENCY UP-CONVERSION IN ERBIUM-DOPED GA2S3-LA2O3 CHALCOGENIDE GLASS

Authors
AMORIM HT DEARAUJO MT GOUVEIA EA GOUVEIANETO AS NETO JAM SOMBRA ASB
Citation
Ht. Amorim et al., INFRARED TO VISIBLE FREQUENCY UP-CONVERSION IN ERBIUM-DOPED GA2S3-LA2O3 CHALCOGENIDE GLASS, Optical materials, 10(3), 1998, pp. 241-244
Citations number
19
Categorie Soggetti
Material Science",Optics
Journal title
Optical materials → ACNP
ISSN journal
09253467
Volume
10
Issue
3
Year of publication
1998
Pages
241 - 244
Database
ISI
SICI code
0925-3467(1998)10:3<241:ITVFUI>2.0.ZU;2-6
Abstract
Infrared to visible frequency upconversion in an erbium-doped lanthanu m-oxide chalcogenide glass excited at 1.06 mu m, is reported for the f irst time. Intense green upconversion emission lines at 525 and 550 nm of the thermally coupled excited State levels H-2(11/2) and S-4(3/2), respectively, is observed. A much lower intensity emission band aroun d 670 nm corresponding to the F-4(9/2)-I-4(15/2) transition, is also o bserved. Two-photon absorption and phonon-assisted energy transfer acc ount for the upconversion excitation mechanism. (C) 1998 Elsevier Scie nce B.V. All rights reserved.