| Title: | Photothermal gas sensing with a custom-made, fiber-coupled Fabry–Pérot etalon |
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| Authors: | ID Tanzer, Manuel (Author)
ID Lang, Benjamin (Author)
ID Njegovec, Matej (Author)
ID Budinski, Vedran (Author)
ID Pevec, Simon (Author)
ID Javornik, Jure (Author)
ID Đonlagić, Denis (Author)
ID Bergmann, Alexander (Author) |
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| Files: |  064101_1_(1).pdf (2,37 MB)
MD5: D662A00B3006F95910B5E17B89885FAA
 https://www.spiedigitallibrary.org/journals/optical-engineering/volume-63/issue-06/064101/Photothermal-gas-sensing-with-a-custom-made-fiber-coupled-FabryP%c3%a9rot/10.1117/1.OE.63.6.064101.full
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FERI - Faculty of Electrical Engineering and Computer Science
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| Abstract: | Growing awareness of the adverse health effects of air pollution has increased the demand for reliable, sensitive, and mass-producible sensor systems. Photothermal interferometry has shown great promise for sensitive, selective, and miniaturized gas sensing solutions. This work describes the development of a macroscopic photothermal sensor system with a sensor head consisting of a low-cost, custom-made, and fiber-coupled Fabry–Pérot etalon. The sensor was tested with NO2, achieving a 3σ limit of detection (LOD) of approximately 370 ppbv (1 s). Exhibiting little drift, a LOD of 15 ppbv is achievable for 200 s integration time. Compensating for the excitation power, the normalized noise equivalent absorption was calculated to be 1.4 × 10−8cm−1 W√Hz. The sensor system is not limited to NO2 but can be used for any gas or aerosol species by exchanging the excitation laser source. |
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| Keywords: | photothermal gas, etalon, interferometry, Fabry-Perot |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 23.12.2023 |
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| Article acceptance date: | 20.05.2024 |
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| Publication date: | 04.06.2024 |
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| Publisher: | Society of Photo-optical Instrumentation Engineers |
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| Year of publishing: | 2024 |
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| Number of pages: | 10 str. |
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| Numbering: | Vol. 63, št. 6 |
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| PID: | 20.500.12556/DKUM-90311  |
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| UDC: | 535 |
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| ISSN on article: | 0091-3286 |
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| COBISS.SI-ID: | 198009859 |
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| DOI: | 10.1117/1.OE.63.6.064101 |
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| Copyright: | © The Authors |
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| Publication date in DKUM: | 29.08.2024 |
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| Views: | 237 |
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| Downloads: | 128 |
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| Metadata: |    |
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| Categories: | Misc.
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