| Autor: |
Bodiou L, Baillieul M, Nazabal V, Lemaitre J, Benardais A, Meziani S, Lorrain N, Dumeige Y, Nemec P, Charrier J |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2023 Mar 01; Vol. 48 (5), pp. 1128-1131. |
| DOI: |
10.1364/OL.483613 |
| Abstrakt: |
Climate-active gases, notably carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O), display fundamental absorption bands in the mid-infrared (mid-IR). The detection and monitoring of those gases could be enabled by the development of mid-IR optical sources. Broadband mid-IR on-chip light emission from rare-earth-doped chalcogenide photonic integrated circuits could provide a compact, efficient, and cost-effective gas sensing solution. Mid-IR photoluminescence of dysprosium-doped selenide ridge waveguides obtained under optical pumping at a telecommunication wavelength (∼1.3 µm) is investigated for Dy 3+ ion concentrations in the 2500-10,000 ppmw range. CO 2 detection at around 4.3 µm is then demonstrated based on absorption of this broadband mid-IR emission. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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