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Investigation of A Slow-Light Enhanced Near-Infrared Absorption Spectroscopic Gas Sensor, Based on Hollow-Core Photonic Band-Gap Fiber.
- Source :
- Sensors (14248220); 7/1/2018, Vol. 18 Issue 7, p2192, 10p, 2 Diagrams, 6 Graphs
- Publication Year :
- 2018
-
Abstract
- Generic modeling and analysis of a slow-light enhanced absorption spectroscopic gas sensor was proposed, using a mode-tuned, hollow-core, photonic band-gap fiber (HC-PBF) as an absorption gas cell. Mode characteristics of the un-infiltrated and infiltrated HC-PBF and gas absorption enhancement of the infiltrated HC-PBF were analyzed. A general rule of microfluidic parameters for targeting different gas species in the near-infrared was obtained. Ammonia (NH<subscript>3</subscript>) was used as an example to explore the effects of slow light on gas detection. The second harmonic (2f ) signal and Allan deviation were theoretically investigated based on the derived formulations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14248220
- Volume :
- 18
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Sensors (14248220)
- Publication Type :
- Academic Journal
- Accession number :
- 133969754
- Full Text :
- https://doi.org/10.3390/s18072192