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Photothermal Common-Path Interferometry for Trace Gas Detection

Presented online at OSA Optical Sensors and Sensing Congress on June 23, 2020
: Wolf, Sebastian; Trendle, Tobias; Catalan, Norman; Kießling, Jens; Wöllenstein, Jürgen; Kühnemann, Frank

Fulltext urn:nbn:de:0011-n-5993964 (946 KByte PDF)
MD5 Fingerprint: 1c8f60d49a6d2d68ce50c9f89f0bd9b8
Created on: 12.8.2020

2020, Paper LTu3C.3, 2 pp.
Optical Sensors and Sensing Congress <2020, Online>
Conference Paper, Electronic Publication
Fraunhofer IPM ()
Trace Gas Detection; Photothermal Common-Path Interferometry; Infrared Gas Spectroscopy

Photothermal common-path interferometry is used for sensitive infrared gas spectroscopy. Numerical modeling of the effect is validated by experimental results. The method enables compact sensor systems that operate largely independent of the actual excitation wavelength.