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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), pp. 56-63. (doi:10.1016/S0022-3093(96)00203-7).

Record type: Article


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

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Published date: November 1996


Local EPrints ID: 78109
ISSN: 0022-3093
PURE UUID: 87ada051-bc28-4173-9d51-54ca6cb3c5e0
ORCID for D.W. Hewak: ORCID iD

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:26

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Author: C.C. Ye
Author: D.W. Hewak ORCID iD
Author: M. Hempstead
Author: B.N. Samson
Author: D.N. Payne

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