Title :
A trace gas sensor at ppb sensitivity based on multiple line integration spectroscopy techniques
Author :
Rao, Gottipaty N. ; Karpf, Andreas
Author_Institution :
Dept. of Phys., Adelphi Univ., Garden City, NY, USA
Abstract :
We demonstrate that employing integrated absorption of multiple lines or summation of the absolute values of the wavelength modulation spectroscopy signals, sensitivities of ppb can be achieved for the detection of trace gases.
Keywords :
gas sensors; pollution measurement; spectroscopy; integrated absorption; multiple line integration spectroscopy; ppb sensitivity; trace gas sensor; wavelength modulation spectroscopy; Absorption; Gas detectors; Gases; Laser tuning; Monitoring; Optical sensors; Quantum cascade lasers; Quantum well lasers; Sensitivity and specificity; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
