Spectroscopic properties of pr3+-doped multicomponent fluoride glasses
| Autor: | Luo Xi, S. Buddhudu, F.J. Bryant, G. Amaranath, Bo Yu, Shuqing Huang |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Photoluminescence
Praseodymium Mechanical Engineering Inorganic chemistry Analytical chemistry chemistry.chemical_element Liquid nitrogen Condensed Matter Physics Laser Ion laser law.invention chemistry.chemical_compound chemistry Mechanics of Materials law General Materials Science Stimulated emission Luminescence Fluoride |
| Zdroj: | Materials Research Bulletin. 25:1317-1323 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/0025-5408(90)90091-f |
| Popis: | A new family of five optical glasses of the following chemical composition with 1M% PrF 3 were prepared to examine the effects of alkali fluorides both in mixed and unmixed form: 30InF 3 /1b30BaF 2 /1b10ThF 4 /1b9ZnF 2 /1b20RF, where RF=LiF, NaF, KF, NaF/1bKF and KF/1bLiF. Significant results have been obtained from the physical characterization of the fluoride glasses. Both the absorption and photoluminescence spectra of these glasses were also measured. Laser emission properties of these glasses were examined both at room and liquid nitrogen temperatures by using an Ar + ion laser. The fluorescent lifetime (in μs) of the emission state 1 D 2 → 3 H 4 ( λ =0.59 μ m) was measured at both 300 K and 77 K. The stimulated emission cross-section of different observed luminescent states of these Pr-doped glasses were measured by the use of Judd-Ofelt theory with the recorded photoluminescence spectra. |
| Databáze: | OpenAIRE |
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