Hughes, MA, Suzuki, T and Ohishi, Y 2010, 'Compositional dependence of the optical properties of bismuth doped lead-aluminum-germanate glass' , Optical Materials, 32 (9) , pp. 1028-1034.
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We report the compositional dependence of absorption, emission, decay constant and quantum efficiency (QE) of GeO2:Al2O3:PbO:Bi2O3 glass with the aim of finding the composition most suitable for a laser gain medium. As the Bi2O3 content was varied we observed a non-monotonic variation in absorption spectrum. The optimized composition was 87.4GeO2:6Al2O3:6PbO:0.6Bi2O3 (% molar) which had a QE of 67% but low transparency. We report the dependence of QE and decay constant on melting conditions of this glass. Adding 10% ZnO improved the transparency, therefore the optimized and transparent composition was 74.4GeO2:10ZnO:6Al2O3:6PbO:0.6Bi2O3, which had an emission full width at half maximum of 500 nm.
|Schools:||Schools > School of Computing, Science and Engineering|
|Journal or Publication Title:||Optical Materials|
|Depositing User:||Dr Mark Hughes|
|Date Deposited:||10 Nov 2015 09:37|
|Last Modified:||05 Apr 2016 19:36|
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