Advanced bismuth-doped lead-germanate glass for broadband optical gain devices
Hughes, MA, Suzuki, T and Ohishi, Y 2008, 'Advanced bismuth-doped lead-germanate glass for broadband optical gain devices' , Journal of the Optical Society of America B: Optical Physics (JOSA B), 25 (8) , pp. 1380-1386.
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We fabricated a series of glasses with the composition 94.7- ͓GeO2-5Al2O3-0.3Bi2O3-͓PbO ( ͓ = 0–24 mol. %) Characteristic absorption bands of bismuth centered at 500, 700, 800, and 1000 nm were observed. Adding PbO was found to decrease the strength of bismuth absorption. The addition of 3%–4% PbO resulted in a 50% increase in lifetime, a 20-fold increase in quantum efficiency, and a 28-fold increase in the product of emission cross section and lifetime on the 0% PbO composition. We propose that the 800 nm absorption band relates a different bismuth center than the other absorption bands.
|Schools:||Schools > School of Computing, Science and Engineering|
|Journal or Publication Title:||Journal of the Optical Society of America B: Optical Physics (JOSA B)|
|Publisher:||Optical Society of America|
|Depositing User:||Dr Mark Hughes|
|Date Deposited:||09 Nov 2015 12:05|
|Last Modified:||05 Apr 2016 19:36|
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