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Photoluminescence in Er-doped Ge-As-Se chalcogenide thin films

Yan, Kunlun; Wang, Rongping; Vu, Khu; Madden, Steve; Belay, Kidane; Elliman, Robert; Luther-Davies, Barry


We report the properties of thermally evaporated Ge11.5As24Se64.5 chalcogenide films ion implanted at energies of 2.25MeV with Erbium at concentrations up to 0.4 mol%. The effect of post implant annealing on the refractive index of the films and on the 4I13/2→4I15/2 Er transition was studied. Photoluminescence was found to increase significantly and a lifetime of 1.35 ms was obtained in films annealed at 180°C. Different apparent lifetimes for the 4I13/2→4I15/2 transition were obtained for...[Show more]

CollectionsANU Research Publications
Date published: 2012-08-20
Type: Journal article
Source: Optical Materials Express 2.9 (2012): 1270-1277
DOI: 10.1364/OME.2.001270


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