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Optical Engineering

Detection of Atmospheric Pollutants by Quantitative Analytical Spectroscopy Using a Continuously Scanned Tunable Dye Laser
Author(s): Yoichi Fujii; Tatsuro Masamura
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Paper Abstract

A new system of quantitative analytical spectroscopy using a continuously scanning tunable dye laser is proposed. This system can detect simultaneously many components of pollutant gases by one scan. The maximum number of detectable gases and the sensitivity of the detection is analyzed. The absorption spectrum is calibrated to the output of the laser, to the standard spectrum (Na), and the interpolating Fabry-Perot interferometer. The gas concentration is calculated by the method of least squares. A fundamental experiment by using a rhodamine 6G dye laser is done. Three kinds of gases, NO2, 12 and Br2, are separately analyzed quantitatively.

Paper Details

Date Published: 1 April 1978
PDF: 6 pages
Opt. Eng. 17(2) 172147 doi: 10.1117/12.7972201
Published in: Optical Engineering Volume 17, Issue 2
Show Author Affiliations
Yoichi Fujii, University of Tokyo (Japan)
Tatsuro Masamura, University of Tokyo (Japan)

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