Title :
Multi-wavelength sensing of greenhouse gases by rapidly swept continuous-wave cavity ringdown spectroscopy
Author :
He, Yabai ; Kan, Ruifeng ; Englich, Florian V. ; Liu, Wenqing ; Orr, Brian J.
Author_Institution :
Dept. of Phys., Macquarie Univ., Sydney, NSW, Australia
Abstract :
The greenhouse gas molecules CH4, CO2, and H2O are detected by using a cavity ringdown laser spectrometer with rapidly swept optical cavity and multi-wavelength coherent radiation. This sensitive portable instrument is applicable to environmental monitoring.
Keywords :
atmospheric techniques; carbon compounds; organic compounds; remote sensing by laser beam; spectrochemical analysis; water; CO2; H2O; environmental monitoring; greenhouse gases; multiwavelength coherent radiation; multiwavelength sensing; rapidly swept continuous-wave cavity ringdown spectroscopy; swept optical cavity; Absorption; Diode lasers; Gas lasers; Global warming; Instruments; Optical sensors; Optical transmitters; Ring lasers; Spectroscopy; Tunable circuits and devices; (120.0280) Remote sensing; (120.6200) Spectrometers and spectroscopic instrumentation;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
