Spectral properties of Er3+-doped gallium lanthanum sulphide glass
Ye, C.C., Hewak, D.W., Hempstead, M., Samson, B.N. and Payne, D.N. (1996) Spectral properties of Er3+-doped gallium lanthanum sulphide glass. Journal of Non-Crystalline Solids, 208, (1-2), 56-63. (doi:10.1016/S0022-3093(96)00203-7).
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Description/Abstract
The spectral properties of chalcogenide glass 0.7Ga2S3:0.3La2S3 (Ga:La:S) doped with Er3+ are presented and discussed. Emission and absorption spectra and lifetimes of energy levels have been measured. The 2.7 km emission of Er3+ has been observed from chalcogenide glass for the first time. Radiative and non-radiative transition rates are calculated and compared with the measured lifetimes of interesting energy levels. Comparing this glass with Er3+-doped silica glasses, it is shown that the absorption and emission cross-sections of Er3+-doped Ga:La:S are around 2.5 times higher, radiative transition rates are around five times higher due to its higher refractive index, while multiphonon non-radiative decay rates are around three orders lower due to its much lower phonon energy. Furthermore, the inverse energy transfer process in Er3+:Ga:La:S glass may have significant implications for the operation of Er3+:Ga:La:S devices. These spectral properties, along with the higher solubility for rare earth-ions in Ga:La:S, make this glass a good candidate for new applications
| Item Type: | Article |
|---|---|
| Additional Information: | |
| ISSNs: | 0022-3093 (print) 1873-4812 (electronic) |
| Related URLs: | |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 78109 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 17 May 2013 01:18 |
| Contributors: | Ye, C.C. (Author) Hewak, D.W. (Author) Hempstead, M. (Author) Samson, B.N. (Author) Payne, D.N. (Author) |
| Date: | November 1996 |
| Additional Information: | |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/78109 |
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