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Proceedings Paper

Low power consumption quartz-enhanced photoacoustic gas sensor employing a quantum cascade laser in pulsed operation
Author(s): Angelo Sampaolo; Pietro Patimisco; Aleksander Gluszek; Arkadiusz Hudzikowski; Marilena Giglio; Huadan Zheng; Frank K. Tittel; Vincenzo Spagnolo
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Paper Abstract

We report here an analysis of the performance of a quartz-enhanced photoacoustic (QEPAS) system operating in a pulsed mode by employing a quantum cascade laser (QCL). The QEPAS system is based on a quartz tuning fork (QTF) having fundamental resonance frequency of 4.2 kHz and a first overtone resonance of 25.4 KHz. Water vapor was used as a target gas by selecting its absorption line falling at 1296.5 cm-1 with a line strength of 1.69⋅10-22 cm/molecule. The QEPAS signal was investigated, while varying the QCL duty-cycle from continuous wave operation, down to 5%, which corresponds to a laser power consumption of 0.17 mW and a pulse-width of 4 μs.

Paper Details

Date Published: 27 January 2017
PDF: 8 pages
Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 101110C (27 January 2017); doi: 10.1117/12.2252326
Show Author Affiliations
Angelo Sampaolo, Politecnico di Bari, CNR (Italy)
Rice Univ. (United States)
Pietro Patimisco, Politecnico di Bari, CNR (Italy)
Rice Univ. (United States)
Aleksander Gluszek, Rice Univ. (United States)
Wroclaw Univ. of Technology (Poland)
Arkadiusz Hudzikowski, Rice Univ. (United States)
Wroclaw Univ. of Technology (Poland)
Marilena Giglio, Politecnico di Bari, CNR (Italy)
Rice Univ. (United States)
Huadan Zheng, Rice Univ. (United States)
Frank K. Tittel, Rice Univ. (United States)
Vincenzo Spagnolo, Politecnico di Bari, CNR (Italy)


Published in SPIE Proceedings Vol. 10111:
Quantum Sensing and Nano Electronics and Photonics XIV
Manijeh Razeghi, Editor(s)

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