Compact and low-noise quartz-enhanced photoacoustic sensor for sub-ppm ethylene detection in atmosphere

P. Patimisco; A. Sampaolo; M. Giglio; F. Sgobba; H. Rossmadl; V. Mackowiak; B. Gross; A. Cable; F. K. Tittel; V. Spagnolo

doi:10.1117/12.2288368

26 January 2018 Compact and low-noise quartz-enhanced photoacoustic sensor for sub-ppm ethylene detection in atmosphere

P. Patimisco, A. Sampaolo, M. Giglio, F. Sgobba, H. Rossmadl, V. Mackowiak, B. Gross, A. Cable, F. K. Tittel, V. Spagnolo

Author Affiliations +

Proceedings Volume 10540, Quantum Sensing and Nano Electronics and Photonics XV; 105401Q (2018) https://doi.org/10.1117/12.2288368
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

We report on the development of a gas sensor system based on quartz-enhanced photoacoustic spectroscopy (QEPAS) for the detection of trace levels of ethylene using a quantum cascade laser operating at ~ 10.3 μm. To realize a compact sensor architecture, a dedicated acoustic detection module was designed and implemented. The module includes a QEPAS spectrophone, composed of a quartz tuning fork, a micro-resonator tube and a low-noise pre-amplifier chip for the signal readout. The volume of the ADM is ~30 cm³. A minimum detection limit of 30 part-per-billion in concentration was obtained with a data acquisition time of 10 s.

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P. Patimisco, A. Sampaolo, M. Giglio, F. Sgobba, H. Rossmadl, V. Mackowiak, B. Gross, A. Cable, F. K. Tittel, and V. Spagnolo "Compact and low-noise quartz-enhanced photoacoustic sensor for sub-ppm ethylene detection in atmosphere", Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105401Q (26 January 2018); https://doi.org/10.1117/12.2288368

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