Title :
Sensitive detection of carbon monoxide using a compact high power CW DFB-QCL based QEPAS sensor
Author :
Stefanski, P. ; Lewicki, R. ; Tarka, J. ; Ma, Yanru ; Jahjah, M. ; Tittel, Frank K.
Author_Institution :
Electr. & Comput. Eng. Dept., Rice Univ., Houston, TX, USA
Abstract :
Development of an ultra-sensitive, selective, and compact QEPAS-based CO sensor employing a high power CW DFB-QCL is reported. A minimum detectable concentration of 4ppbv was achieved for CO line (2169.2cm-1) using a 5sec data acquisition time.
Keywords :
carbon compounds; distributed feedback lasers; gas sensors; measurement by laser beam; optical sensors; photoacoustic spectroscopy; quantum cascade lasers; CO; carbon monoxide; compact high power CW DFB-QCL based QEPAS sensor; data acquisition time; quartz-enhanced photoacoustic spectroscopy; sensitive detection; time 5 s; ultrasensitive selective compact QEPAS-based CO sensor; Atmospheric measurements; Current measurement; Laser beams; Measurement by laser beam; Optical sensors; Quantum cascade lasers; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
