(INVITED)Mid-infrared photoluminescence in Ce3+ doped selenide-chalcogenide glass and fiber
(INVITED)Mid-infrared photoluminescence in Ce3+ doped selenide-chalcogenide glass and fiber
复制标题
(邀请)Ce3 掺杂硒化物硫属化物玻璃和光纤中的中红外光致发光
DOI:
10.1016/j.optmat.2023.113543
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发表时间:
2023
影响因子:
3.9
通讯作者:
Nunes J
中科院分区:
文献类型:
--
作者:
Nunes J
We provide measurements to support our earlier report of continuous wave fiber lasing in a small core Ce3+-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 Ce3+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 the2F5/2←2F7/2electronic emission transition due to Ce3+. 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 ‘τrad’ (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.
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DOI:
--
发表时间:
2012
期刊:
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