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Spectroscopic properties of Eu:Bi4Ge3O12 single crystal grown by the micro-pulling-down method.
- Source :
-
Journal of Luminescence . Apr2019, Vol. 208, p208-212. 5p. - Publication Year :
- 2019
-
Abstract
- Abstract Eu3+-doped Bi 4 Ge 3 O 12 (BGO) single crystal with the size of Ø2 × 83 mm3 was successfully grown by the micro-pulling-down method. The absorption cross section, emission cross section and Judd–Ofelt analysis of Eu:Bi 4 Ge 3 O 12 (Eu:BGO) were reported for the first time. The absorption cross-section is 1.03 × 10−20 cm2 with full-width at half-maximum of 3.1 nm at around 393 nm. The spectroscopic intensity parameter Ω t (t = 2,4,6), radiative transition probabilities, branching ratios and radiative lifetime were obtained, respectively. Furthermore, the stimulated emission cross-section centered at 611 nm was calculated to be 6.32 × 10−21 cm2. The fluorescence lifetime of 5D 0 level was obtained to be 1.51 ms. The results indicate that Eu: BGO single crystal could be a potential laser host in the visible range. [ABSTRACT FROM AUTHOR]
- Subjects :
- *EUROPIUM
*BISMUTH compounds
*SINGLE crystals
*ABSORPTION
*CRYSTAL structure
Subjects
Details
- Language :
- English
- ISSN :
- 00222313
- Volume :
- 208
- Database :
- Academic Search Index
- Journal :
- Journal of Luminescence
- Publication Type :
- Academic Journal
- Accession number :
- 134378972
- Full Text :
- https://doi.org/10.1016/j.jlumin.2018.12.053