Absorption and photoluminescence spectra of Tm3+-doped fluorophosphate glasses

✍ Scribed by A.V.Ranga Reddy; T. Balaji; S. Buddhudu

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 233 KB
• Volume: 48
• Category: Article
• ISSN: 1386-1425
• DOI: 10.1016/0584-8539(92)80162-p

✦ Synopsis

Almraet--We have carried out absorption and photoluminescence spectra of six newly prepared TmF3 (2 M%) doped fluorophosphate glasses of composition:

(NaPO3)6-BaF2-ZnF2-RF where R = Li, Na, K, (Li-Na), (Na-K) and (K-Li). By evaluating the Judd-Ofelt intensity parameters for the measured absorption levels, the recorded photoluminescence spectra have been analysed to estimate the fluorescent radiative properties (A, AT, ~s) and the stimulated emission cross-sections (or E) of the following luminescence transitions:

ID2.--,3H 5 (:t =492 nm).

These have been determined in order to understand the alkali effects on the Tm3+-optical glasses studied.