Abstract
We report our recent work on the development of a highly sensitive gas detection technique-photothermal interferometry spectroscopy with hollow-core optical fibers. The basic principle of operation, generation and detection of dynamic photothermal phase modulation, and method to improve the response time of the hollow-core fiber sensors are described. The technique has ultra-high sensitivity and dynamic range, and the measurement is not affected by reflection/scattering and other non-absorbing losses. Sensors based on such a technique could be made compact in size with remote detection, multiplexing and networking capability, which would enable a range of high performance applications in environmental, medical and safety monitoring.
Original language | English |
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Article number | 074212 |
Journal | Wuli Xuebao/Acta Physica Sinica |
Volume | 66 |
Issue number | 7 |
DOIs | |
Publication status | Published - 5 Apr 2017 |
Keywords
- Gas sensor
- Hollow-core photonics bandgap fiber
- Optical fiber interferometry
- Optical fiber sensor
- Photothermal spectroscopy
ASJC Scopus subject areas
- General Physics and Astronomy