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Optical detection of potassium chloride vapor using collinear photofragmentation and atomic absorption spectroscopy |
Optics Letters, Vol. 37, Issue 19, pp. 4011-4013 (2012)
http://dx.doi.org/10.1364/OL.37.004011
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Abstract
A sensitive and selective optical technique to detect potassium chloride (KCl) vapor is introduced. The technique is based on the photofragmentation of KCl molecules, using a pulsed UV laser, and optical probing of the temporarily increased amount of potassium atoms with a near-infrared laser. The two laser beams are aligned to go through the sample volume along the same optical path. The performance of the technique is demonstrated by detecting KCl concentrations from 25 ppb to 30 ppm in a temperature-controlled cell.
© 2012 Optical Society of America
OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(300.6210) Spectroscopy : Spectroscopy, atomic
(350.5130) Other areas of optics : Photochemistry
ToC Category:
Spectroscopy
History
Original Manuscript: July 9, 2012
Manuscript Accepted: August 15, 2012
Published: September 20, 2012
Citation
Tapio Sorvajärvi, Jaakko Saarela, and Juha Toivonen, "Optical detection of potassium chloride vapor using collinear photofragmentation and atomic absorption spectroscopy," Opt. Lett. 37, 4011-4013 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-19-4011
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