Absorption and fluorescence of Ho3+ IN La2S3·3Ga2S3 |
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| Authors: | R. Reisfeld,A. Bornstein,J. Flahaut,M. Guittard,A.M. Loireau-Lozac&#x h |
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| Affiliation: | Department of Inorganic and Analytical Chemistry, Hebrew University, Jerusalem, Israel;Université René Descartes, Faculté de Sciences Pharmaceutiques et Biologiques, F 75270 Paris Cedex 06, France |
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| Abstract: | Absorption bands of Ho3+ in vitreous La2S3·3Ga2S3 in the range 500 to 2000 nm were assigned. Excitation spectra reveal additional levels 5G6 and 5F3 obscured by the intrinsic absorption of the glass. The Ho3+ emission in chalcogenide glasses is more intense than in oxide glasses due to smaller non radiative relaxation as predicted by the theory of multiphonon relaxation. |
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