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Conferences > CLEO_SI > 2016 > SF2H > SF2H.4

Micro-resonator Parameter Optimization of a QEPAS Spectrophone using a Custom Quartz Tuning Fork with large Prong Spacing

Lei Dong, Huadan Zheng, Hongpeng Wu, Xukun Yin, Suotang Jia, Angelo Sampaolo, Pietro Patimisco, Vincenzo Spagnolo, and Frank K. Tittel

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Abstract

A Quartz-enhanced photoacoustic sensor using a custom quartz tuning fork with large prong spacing was realized and optimized by improving its spectrophone design and performance. The impact of two-tube and single-tube on-beam micro-resonator (mR) geometries on the detected signal and signal-to-noise ratio (SNR) was investigated. Experimental studies demonstrated that a single-tube configuration offers a shorter mR and a higher SNR than two-tube configuration.

© 2016 Optical Society of America

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