Laser ablation deposition of Ga2S3-La2S3 glass films
Laser ablation deposition of Ga2S3-La2S3 glass films
Gallium - lanthanum sulphide glasses (GLS) show wide range transparency and low non radiative relaxation rates for dopant ions such as Ho3+, Er3+ etc. They also show permanent photomodification of the refractive index under visible illumination. We report laser ablation deposition of these glasses and preliminary results on film stoichiometry and deposition rate as a function of excimer laser fluence. The sulphur to metal and Ga/La ratios are found to have marked fluence dependencies. The films show considerably more Urbach tail absorption than bulk material. A novel method has been developed for mapping the permanent photomodified index.
Asal, R.
490148c2-6ad7-4a75-8221-2d15090d88b2
Rivers, P.E.
c2edc418-b6ff-4dc2-a9d6-e7556014f14c
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
1995
Asal, R.
490148c2-6ad7-4a75-8221-2d15090d88b2
Rivers, P.E.
c2edc418-b6ff-4dc2-a9d6-e7556014f14c
Rutt, H.N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Asal, R., Rivers, P.E. and Rutt, H.N.
(1995)
Laser ablation deposition of Ga2S3-La2S3 glass films.
Materials Research Society Symposium, , Boston, United States.
6 pp
.
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Conference or Workshop Item
(Paper)
Abstract
Gallium - lanthanum sulphide glasses (GLS) show wide range transparency and low non radiative relaxation rates for dopant ions such as Ho3+, Er3+ etc. They also show permanent photomodification of the refractive index under visible illumination. We report laser ablation deposition of these glasses and preliminary results on film stoichiometry and deposition rate as a function of excimer laser fluence. The sulphur to metal and Ga/La ratios are found to have marked fluence dependencies. The films show considerably more Urbach tail absorption than bulk material. A novel method has been developed for mapping the permanent photomodified index.
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Published date: 1995
Venue - Dates:
Materials Research Society Symposium, , Boston, United States, 1995-01-01
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Local EPrints ID: 76952
URI: http://eprints.soton.ac.uk/id/eprint/76952
PURE UUID: 07c1cd2e-446a-40ab-bc60-747f9711ce3e
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:40
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Contributors
Author:
R. Asal
Author:
P.E. Rivers
Author:
H.N. Rutt
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