We report on the first demonstration of a quartz enhanced photo-acoustic (QEPAS) sensor in the Terahertz (THz) range. The sensor is based on a QCL emitting at 3.93 THz and a customized quartz tuning fork. For methanol detection we reached a normalized noise-equivalent absorption of 2×10 -10 cm -1 W/Hz ½ comparable with the best result of mid-IR QEPAS.

THz quantum cascade laser-based quartz enhanced photo-acoustic sensor

Vincenzo Spagnolo;Pietro Patimisco;Angelo. Sampaolo;
2013

Abstract

We report on the first demonstration of a quartz enhanced photo-acoustic (QEPAS) sensor in the Terahertz (THz) range. The sensor is based on a QCL emitting at 3.93 THz and a customized quartz tuning fork. For methanol detection we reached a normalized noise-equivalent absorption of 2×10 -10 cm -1 W/Hz ½ comparable with the best result of mid-IR QEPAS.
38th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2013
978-1-4673-4717-4
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/16499
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