Intensity Modulated Photothermal Measurements of NO<sub>2</sub> with a Compact Fiber-Coupled Fabry–Pérot Interferometer

Intensity Modulated Photothermal Measurements of NO<sub>2</sub> with a Compact Fiber-Coupled Fabry–Pérot Interferometer

Sensors for the reliable measurement of nitrogen dioxide concentrations are of high interest due the adverse health effects of this pollutant. This work employs photothermal spectroscopy to measure nitrogen dioxide concentrations at the parts per billion level. Absorption induced temperature changes...

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Bibliographic Details
Main Authors: Philipp Breitegger, Benjamin Lang, Alexander Bergmann
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Sensors
Subjects:
nitrogen dioxide
photothermal interferometry
gas sensor
optical microphone
Online Access:https://www.mdpi.com/1424-8220/19/15/3341

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