Photothermal Monitor for Black Carbon Mass Concentration using a Fiber-Coupled Fabry-Perót Interferometer

Ulrich Radeschnig; Markus Knoll; Benjamin Lang; Alexander Bergmann

doi:10.1364/ES.2021.ETh1A.5

OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES)
OSA Technical Digest (Optica Publishing Group, 2021),
paper ETh1A.5
•https://doi.org/10.1364/ES.2021.ETh1A.5

Photothermal Monitor for Black Carbon Mass Concentration using a Fiber-Coupled Fabry-Perót Interferometer

Ulrich Radeschnig, Markus Knoll, Benjamin Lang, and Alexander Bergmann

Optics and Photonics for Sensing the Environment 2021

Washington, DC United States
19–23 July 2021
ISBN: 978-1-943580-90-3

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U. Radeschnig, M. Knoll, B. Lang, and A. Bergmann, "Photothermal Monitor for Black Carbon Mass Concentration using a Fiber-Coupled Fabry-Perót Interferometer," in OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), S. Buckley, F. Vanier, S. Shi, K. Walker, I. Coddington, S. Paine, K. Lok Chan, W. Moses, S. Qian, P. Pellegrino, F. Vollmer, G. , J. Jágerská, R. Menzies, L. Emmenegger, and J. Westberg, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper ETh1A.5.

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Abstract

We present a concept for a miniaturizable black carbon monitor based on a fiber-coupled Fabry-Pérot interferometer. By means of photothermal excitation, we reach a limit of detection as low as 13 µg/m³.

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