Non-radiative relaxation in Ta-doped silica fibres
Non-radiative relaxation in Ta-doped silica fibres
We describe the properties of tantalum-doped silica fibers which have been doped with thulium and produced by a normal solution doping technique. In silica fibers, non-radiative decay almost quenches luminescence from several of the Tm levels, notably the 3F4 level at 800 nm, and the 1H4 level at 2µm. The properties of these levels are a sensitive test of multiphonon decay rates in the host. We observe fluorescence decay components from these levels in Tm-doped tantalosilicate fibers which are significantly longer than those observed in Tm-doped germanosilicate or aluminosilicate fibers. This is interpreted as the formation of a low-vibrational-energy microenvironment around the rare earth.
205-208
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Townsend, J.E.
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Brinck, D.J.
502eebad-0290-4efe-9746-4fbd0924653c
Brown, R.S.
a617c5b4-9417-4f00-8675-4ce60e757d29
August 1994
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Townsend, J.E.
a5a6f6ef-adb0-4072-8dcb-b6f5b5a47e64
Brinck, D.J.
502eebad-0290-4efe-9746-4fbd0924653c
Brown, R.S.
a617c5b4-9417-4f00-8675-4ce60e757d29
Brocklesby, W.S., Townsend, J.E., Brinck, D.J. and Brown, R.S.
(1994)
Non-radiative relaxation in Ta-doped silica fibres.
Optical Materials, 3 (3), .
(doi:10.1016/0925-3467(94)90005-1).
Abstract
We describe the properties of tantalum-doped silica fibers which have been doped with thulium and produced by a normal solution doping technique. In silica fibers, non-radiative decay almost quenches luminescence from several of the Tm levels, notably the 3F4 level at 800 nm, and the 1H4 level at 2µm. The properties of these levels are a sensitive test of multiphonon decay rates in the host. We observe fluorescence decay components from these levels in Tm-doped tantalosilicate fibers which are significantly longer than those observed in Tm-doped germanosilicate or aluminosilicate fibers. This is interpreted as the formation of a low-vibrational-energy microenvironment around the rare earth.
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Published date: August 1994
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Local EPrints ID: 78178
URI: http://eprints.soton.ac.uk/id/eprint/78178
PURE UUID: e3233a2c-7b00-421a-a170-f919f58b6a52
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:34
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Author:
J.E. Townsend
Author:
D.J. Brinck
Author:
R.S. Brown
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