Spectral properties of Er3+-doped gallium lanthanum sulphide glass
Spectral properties of Er3+-doped gallium lanthanum sulphide glass
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
56-63
Ye, C.C.
44bb63a5-133a-456f-8f35-09bbc153bc4f
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Hempstead, M.
1bc4f2eb-fba7-46b8-b0c6-199f586b9954
Samson, B.N.
0e9f1440-04ab-4aad-994f-554d24a3a419
Payne, D.N.
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November 1996
Ye, C.C.
44bb63a5-133a-456f-8f35-09bbc153bc4f
Hewak, D.W.
87c80070-c101-4f7a-914f-4cc3131e3db0
Hempstead, M.
1bc4f2eb-fba7-46b8-b0c6-199f586b9954
Samson, B.N.
0e9f1440-04ab-4aad-994f-554d24a3a419
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
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), .
(doi:10.1016/S0022-3093(96)00203-7).
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
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Published date: November 1996
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Local EPrints ID: 78109
URI: http://eprints.soton.ac.uk/id/eprint/78109
ISSN: 0022-3093
PURE UUID: 87ada051-bc28-4173-9d51-54ca6cb3c5e0
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:06
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Author:
C.C. Ye
Author:
M. Hempstead
Author:
B.N. Samson
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