Title :
Atmospheric absorption spectroscopy using supercontinuum lasers
Author :
Edwards, Perry S. ; Brown, David M. ; Wyant, Andrea M. ; Liu, Zhiwen ; Philbrick, C. Russell
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A supercontinuum absorption spectroscopy (SAS) approach for measurement of atmospheric constituents is extended to offer increased capability of detecting concentrations of gaseous species. An atmospheric path length greater than 600 m is utilized in the multi-wavelength differential absorption setup. A multi-wavelength algorithm for analysis of the spectra measurements obtained from the return of the supercontinuum source is used to determine the concentrations of species, with comparison to MODTRANtrade 5 simulation spectra. Further developments to the SAS approach and measurements are presented.
Keywords :
atmospheric composition; atmospheric spectra; laser beam applications; radiative transfer; remote sensing by laser beam; MODTRAN 5 simulation spectra; atmospheric constituents measurement; atmospheric path length; gaseous species concentration detection; multi-wavelength algorithm; multi-wavelength differential absorption; spectra measurements; supercontinuum absorption spectroscopy approach; supercontinuum lasers; Absorption; Algorithm design and analysis; Atmospheric measurements; Fiber lasers; Gas lasers; Optical sensors; Pollution measurement; Pump lasers; Spectroscopy; Synthetic aperture sonar; (010.0280) Remote Sensing and Sensors; (010.1300) Atmospheric Propagation; (010.3640) LIDAR;
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
