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Near-infrared Quartz Enhanced Photoacoustic Sensor for Sub-ppm Level H2S Detection based on a Fiber-amplifier Source

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Abstract

An enhanced near-infrared quartz enhanced photoacoustic spectroscopy (QEPAS) sensor for sub-ppm level H2S detection by means of a fiber amplified 1582 nm distributed feedback laser was developed. Experimental studies demonstrated that a H2S detection sensitivity of 142 ppbv can be achieved by the reported power-boosted QEPAS sensor at atmospheric pressure and room temperature.

© 2016 Optical Society of America

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