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Optimization of microresonator parameters for a quartz-enhanced photoacoustic spectroscopy sensor

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4 Author(s)
Lei Dong ; Electr. & Comput. Eng. Dept., Rice Univ., Houston, TX, USA ; Kosterev, Anatoliy A. ; Thomazy, D. ; Tittel, F.K.

A quartz-enhanced photoacoustic spectroscopy based gas sensor was optimized to improve its compact spectrophone design and performance. The impact of a 2-tube microresonator geometry on the detected signal and signal to noise ratio (SNR) was investigated. Experimental studies demonstrate that the l=4.4 mm long tubes (ID=0.5 mm) result in a significantly enhanced SNR.

Published in:

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Date of Conference:

2-4 June 2009