QEPAS spectroscopy with fully tunable IC-ECDL with high bandwidth for the MIR range

Hervé Tatenguem; Morten Hoppe; Christian Aßmann; Sebastian Schmidtmann; Martin Honsberg; Joachim Sacher

doi:10.1117/12.2650210

8 March 2023 QEPAS spectroscopy with fully tunable IC-ECDL with high bandwidth for the MIR range

Hervé Tatenguem, Morten Hoppe, Christian Aßmann, Sebastian Schmidtmann, Martin Honsberg, Joachim Sacher

Proceedings Volume 12428, Photonic Instrumentation Engineering X; 124280W (2023) https://doi.org/10.1117/12.2650210
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

To meet the requirements for multi-species gas analysis, Quartz-Enhanced Photo-Acoustic Spectroscopy (QEPAS) is used in combination with an IC-based External Cavity Laser system (IC-ECL). The laser system allows the coverage of a wavelength range of 285 nm with an output power of several mW. By integrating piezoelectric actuators as well as resonantly driven MEMS actuators, extremely high sampling rates can be achieved. In this work, results on the detection of multiple trace gases by sequential quasi-simultaneous measurements are presented. The requirements of multi-species detection, output power, tuning range and detection rate are met by our work.

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Citation Download Citation

Hervé Tatenguem, Morten Hoppe, Christian Aßmann, Sebastian Schmidtmann, Martin Honsberg, and Joachim Sacher "QEPAS spectroscopy with fully tunable IC-ECDL with high bandwidth for the MIR range ", Proc. SPIE 12428, Photonic Instrumentation Engineering X, 124280W (8 March 2023); https://doi.org/10.1117/12.2650210

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