Broadband mid-infrared (2.5–5.5 µm) emission from Co2+/Fe2+ codoped chalcogenide glass ceramics
Autor: | Jianhui Li, Jing Ren, Mingyang Sun, Anping Yang, Zhiyong Yang, Lu Yang, Ravinder K. Jain, Xiaosong Lu, Pengfei Wang |
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Rok vydání: | 2020 |
Předmět: |
Materials science
business.industry Chalcogenide Mid infrared Chalcogenide glass Butane 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics chemistry.chemical_compound Optics chemistry Nanocrystal visual_art 0103 physical sciences Broadband visual_art.visual_art_medium Optoelectronics Ceramic 0210 nano-technology Luminescence business |
Zdroj: | Optics Letters. 45:2676 |
ISSN: | 1539-4794 0146-9592 |
DOI: | 10.1364/ol.392190 |
Popis: | Compact, mechanically robust, and cost-effective mid-infrared (MIR) light sources are key components in portable and field-deployable gas sensors. Capitalizing on an efficient energy transfer mechanism between C o 2 + and F e 2 + , we have demonstrated for the first time, to the best of our knowledge, that ultrabroadband 2.5–5.5 µm MIR emission can be achieved at room temperatures in chalcogenide (ChG) glasses that are pumped by a commercially available erbium-doped fiber amplifier emitting at 1.57 µm. These MIR-transparent ChG glass ceramics are embedded with C o 2 + / F e 2 + codoped ZnSe nanocrystals, and show sufficient MIR emission intensities and bandwidths to enable gas sensing for multiple target analytes such as butane and carbon dioxide. We also describe, to the best of our knowledge, the first observation of a unique “anomalous” increase in the MIR luminescence intensity as a function of temperature. |
Databáze: | OpenAIRE |
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