Non-radiative relaxation in Ta-doped silica fibres
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), 205-208. (doi:10.1016/0925-3467(94)90005-1).
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Description/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.
| Item Type: | Article |
|---|---|
| ISSNs: | 0925-3467 |
| 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: | 78178 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 08 Oct 2012 11:08 |
| Contributors: | Brocklesby, W.S. (Author) Townsend, J.E. (Author) Brinck, D.J. (Author) Brown, R.S. (Author) |
| Date: | August 1994 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/78178 |
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