(INVITED) Mid-infrared photoluminescence in Ce 3+ doped selenide-chalcogenide glass and fiber

Nunes, Joel J.; Crane, Richard W.; Tang, Zhuoqi; Sójka, Łukasz; Kalfagiannis, Nikolaos; Furniss, David; Farries, Mark C.; Benson, Trevor M.; Sujecki, Slawomir; Seddon, Angela B.

Abstract

We provide measurements to support our earlier report of continuous wave fiber lasing in a small core Ce 3+-doped selenide chalcogenide SIF (step index fiber) of core: Ge-As-Ga-Se chalcogenide glass, doped with 500 ppmw (parts-per-million by weight) of cerium(III). In-band pumping of Ce 3+ in fiber, bulk glass and ground glass geometries, at 4.15 µm wavelength, gives MIR (mid-infrared) photoluminescence spanning 3.40-5.80 μm wavelength, corresponding to the 2 F5/2  2 F7/2 electronic emission transition due to Ce 3+. Room temperature emission and MIR absorption spectra together enable interpretation of the manifold energies of the first excited state and there is potential for occupied Stark levels in the ground state at room temperature. Both 'í µí¼rad' (PL lifetime) and 'trise' (rise-time through 10% to 90 % of maximum PL intensity) are determined: for ground glass at 4.60 µm wavelength, the best decay fit comprises a primary, and perhaps secondary, lifetime for ground glass of 3.5 ms, and 1.2 ms, and PL rise time of 3.9 ms.

Citation

Nunes, J. J., Crane, R. W., Tang, Z., Sójka, Ł., Kalfagiannis, N., Furniss, D., …Seddon, A. B. (2023). (INVITED) Mid-infrared photoluminescence in Ce 3+ doped selenide-chalcogenide glass and fiber. Optical Materials, 137, Article 113543. https://doi.org/10.1016/j.optmat.2023.113543

• Journal Article Type: Article
• Acceptance Date: Jan 30, 2023
• Online Publication Date: Feb 27, 2023
• Publication Date: 2023-03
• Deposit Date: Feb 16, 2023
• Publicly Available Date: Feb 28, 2024
• Journal: Optical Materials
• Print ISSN: 0925-3467
• Electronic ISSN: 1873-1252
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 137
• Article Number: 113543
• DOI: https://doi.org/10.1016/j.optmat.2023.113543
• Public URL: https://nottingham-repository.worktribe.com/output/17381995
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0925346723001155