Abstract
Measurements of benzene concentration based on high-resolution laser absorption spectroscopy by use of the R(6) transition in the ν 4 fundamental vibrational band near 14.8 µm (676.6 cm-1) are reported. These measurements were performed with a tunable continuous-wave, mid-infrared spectroscopic light source that employs difference-frequency mixing of two Ti:sapphire lasers in a GaSe nonlinear optical crystal. A minimum benzene concentration detection of ∼11.5 parts in 106 was realized at a reduced pressure of 40 mbars.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
Matthew T. Parsons, Ihor Sydoryk, Alan Lim, Thomas J. McIntyre, John Tulip, Wolfgang Jäger, and Karen McDonald
Appl. Opt. 50(4) A90-A99 (2011)
Lubos Hvozdara, Stefan Gianordoli, Gottfried Strasser, Werner Schrenk, Karl Unterrainer, Erich Gornik, Chavali S. S. S. Murthy, Martin Kraft, Viktor Pustogow, Boris Mizaikoff, Alexandra Inberg, and Nathan Croitoru
Appl. Opt. 39(36) 6926-6930 (2000)
David G. Lancaster, Alan Fried, Bryan Wert, Bruce Henry, and Frank K. Tittel
Appl. Opt. 39(24) 4436-4443 (2000)