Title :
Optimization of microresonator parameters for a quartz-enhanced photoacoustic spectroscopy sensor
Author :
Dong, Lei ; Kosterev, Anatoliy A. ; Thomazy, David ; Tittel, Frank K.
Author_Institution :
Electr. & Comput. Eng. Dept., Rice Univ., Houston, TX, USA
Abstract :
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.
Keywords :
acoustic signal detection; gas sensors; micro-optomechanical devices; micromechanical resonators; optical signal detection; photoacoustic spectroscopy; quartz; spectrochemical analysis; 2-tube microresonator geometry; compact spectrophone design; enhanced SNR; gas sensor; microresonator parameters; photoacoustic signal detection; quartz-enhanced photoacoustic spectroscopy sensor; signal to noise ratio; size 4.4 mm; Acoustic sensors; Acoustic signal detection; Gas detectors; Gas lasers; Laser tuning; Microcavities; Optical sensors; Resonance; Signal to noise ratio; Spectroscopy; (280.3420) Laser sensors; (280.4788) Optical sensing and sensors; (300.6360) Spectroscopy, laser;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
