Spectroscopy of vanadium (III) doped gallium lanthanum sulphide chalcogenide glass
Hughes, MA, Rutt, H, Hewak, D and Curry, RJ 2007, 'Spectroscopy of vanadium (III) doped gallium lanthanum sulphide chalcogenide glass' , Applied Physics Letters, 90 , 031108.
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Vanadiumdopedgalliumlanthanum sulphide glass (V:GLS) displays three absorption bands at 580, 730, and 1155nm identified by photoluminescence excitation measurements. Broad photoluminescence, with a full width at half maximum of ∼500nm , is observed peaking at 1500nm when exciting at 514, 808, and 1064nm . The fluorescence lifetime and quantum efficiency at 300K were measured to be 33.4μs and 4%, respectively. From the available spectroscopic data, the authors propose the vanadium ions’ valence to be 3+ and be in tetrahedral coordination. The results indicate a potential for the development of a laser or optical amplifier based on V:GLS.
|Schools:||Schools > School of Computing, Science and Engineering|
|Journal or Publication Title:||Applied Physics Letters|
|Publisher:||American Institute of Physics|
|Funders:||Engineering and Physical Sciences Research Council (EPSRC)|
|Depositing User:||Dr Mark Hughes|
|Date Deposited:||11 Nov 2015 09:28|
|Last Modified:||05 Apr 2016 19:37|
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