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Conferences > EE > 2015 > EM2A > EM2A.6

Scattered Light Modulation Cancellation Method for ppb- level NO2 Detection in a LED-excited QEPAS System

Huadan Zheng, Ying Ma, Xukun Yin, Lei Dong, Lei Zhang, Weiguang Ma, Wangbao Yin, and Suotang Jia

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Abstract

A scattered light modulation cancellation method was proposed to suppress the background noise in a LED-excited quartz enhanced photoacoustic spectroscopy system. For NO2 detection, a detection limit of 1.3 ppb is achieved.

© 2015 Optical Society of America

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