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Spectroscopy of titanium-doped gallium lanthanum sulfide glass

Hughes, MA, Curry, RJ and Hewak, DW (2008) Spectroscopy of titanium-doped gallium lanthanum sulfide glass J OPT SOC AM B, 25 (9). 1458 - 1465. ISSN 0740-3224

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Abstract

Titanium-doped gallium lanthanum sulfide (Ti:GLS) and gallium lanthanum oxysulfide (Ti:GLSO) glasses have an absorption band at similar to 500-600 nm that cannot be fully resolved because of its proximity to the band edge of the glass. At concentrations >0.5% a shoulder at 980 nm is observed in Ti:GLS but not in Ti :GLSO. The emission spectra of Ti:GLS and T :GLSO both peak at 900 nm with lifetimes of 67 and 97)us, respectively. We propose that the absorption at similar to 600 nm is due to the T-2(2g) -> E-2(g) transition of octahedral Ti3+ and the 980 nm shoulder is due to Ti3+-Ti4+ pairs. (C) 2008 Optical Society of America.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Authors :
AuthorsEmail
Hughes, MAUNSPECIFIED
Curry, RJUNSPECIFIED
Hewak, DWUNSPECIFIED
Date : September 2008
Identification Number : 10.1364/JOSAB.25.001458
Uncontrolled Keywords : OPTICAL-ABSORPTION, PHOSPHATE-GLASSES, LASER CHARACTERISTICS, SILICATE-GLASSES, SPECTRA, IONS, LUMINESCENCE, RELAXATION, TI-AL2O3, PHOTOLUMINESCENCE
Additional Information : This paper was published in Journal of the Optical Society of America B and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: <a href=""http://dx.doi.org/10.1364/JOSAB.25.001458"">http://dx.doi.org/10.1364/JOSAB.25.001458</a>. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Depositing User : Symplectic Elements
Date Deposited : 07 Dec 2011 13:33
Last Modified : 23 Sep 2013 18:51
URI: http://epubs.surrey.ac.uk/id/eprint/7794

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