Abstract
We exploit photothermal effect in gas-filled hollow-core photonic bandgap fibers, and demonstrate remarkably sensitive all-fiber (acetylene) gas sensors with noise equivalent concentration of 1-3 parts-per-billion and an unprecedented dynamic range of nearly six orders of magnitude. These results are two to three orders of magnitude better than previous direct absorption-based optical fiber gas sensors. The realization of photothermal spectroscopy in fiber-optic format will allow a new class of sensors with ultra-sensitivity and selectivity, compact size, remote and multiplexed multi-point detection capability.
Original language | English |
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Title of host publication | 24th International Conference on Optical Fibre Sensors, OFS 2015 |
Publisher | SPIE |
Volume | 9634 |
ISBN (Electronic) | 9781628418392 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Event | 24th International Conference on Optical Fibre Sensors, OFS 2015 - Pestana Hotel and Convention Centre, Curitiba, Brazil Duration: 28 Sept 2015 → 2 Oct 2015 |
Conference
Conference | 24th International Conference on Optical Fibre Sensors, OFS 2015 |
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Country/Territory | Brazil |
City | Curitiba |
Period | 28/09/15 → 2/10/15 |
Keywords
- Gas sensor
- Microstructured fiber
- Optical fiber sensor
- Photonic bandgap fiber
- Photonic crystal fiber
- Photothermal effect
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering