Spectroscopy of titanium-doped gallium lanthanum sulfide glass
Hughes, MA, Curry, RJ and Hewak, DW 2008, 'Spectroscopy of titanium-doped gallium lanthanum sulfide glass' , Journal of the Optical Society of America B, 25 (9) , pp. 1458-1465.
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Titanium-doped gallium lanthanum sulfide (Ti:GLS) and gallium lanthanum oxysulfide (Ti:GLSO) glasses have an absorption band at ∼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 Ti:GLSO both peak at 900 nm with lifetimes of 67 and 97 μs, respectively. We propose that the absorption at ∼600 nm is due to the T2g 2 →Eg 2 transition of octahedral Ti3+ and the 980 nm shoulder is due to Ti3+–Ti4+ pairs.
|Schools:||Schools > School of Computing, Science and Engineering|
|Journal or Publication Title:||Journal of the Optical Society of America B|
|Publisher:||Opitcal Society of America|
|Funders:||Engineering and Physical Sciences Research Council (EPSRC)|
|Depositing User:||Dr Mark Hughes|
|Date Deposited:||11 Nov 2015 09:21|
|Last Modified:||05 Apr 2016 19:37|
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