Title :
Development of laser based spectroscopic trace-gas sensors for environmental sensor networks and medical exposure monitors
Author :
So, Stephen G. ; Chang, Daniel ; Al´Rifai, Omar ; Wysocki, Gerard ; Kosterev, Anatoliy A. ; Tittel, Frank K.
Author_Institution :
Electr. & Comput. Eng. Dept., Rice Univ., Houston, TX
Abstract :
We report wavelength modulated TDLAS/QEPAS trace gas sensors with reduced size, efficiency, and cost for use in environmental sensor networks and medical exposure monitors. CO2 measurements with a 2 mum diode laser dissipate <1 W.
Keywords :
biomedical equipment; gas sensors; optical modulation; patient monitoring; photoacoustic spectroscopy; remote sensing by laser beam; spectrochemical analysis; CO2; CO2 measurements; QEPAS sensor; TDLAS sensor; diode laser; environmental sensor networks; laser based sensors; medical exposure monitors; quartz-enhanced photoacoustic spectroscopy; size 2 mum; spectroscopic trace-gas sensors; tunable diode laser absorption spectroscopy; wavelength modulation; Biosensors; Chemical sensors; Costs; Diode lasers; Driver circuits; Gas detectors; Gas lasers; Power lasers; Sensor phenomena and characterization; Spectroscopy; (120.6200) Spectrometers and spectroscopic instrumentation; (300.6360) Spectroscopy, laser;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
