Cavity ringdown spectroscopy (CRDS) is a highly sensitive spectroscopic technique that has been successfully applied to problems such as trace gas detection and the observation of weak spectra. Despite possessing several intrinsic advantages over other techniques, CRDS has not yet been widely used to study spectral line shapes. Therefore, we begin with an introduction to CRDS, followed by a discussion of the most important elements of a quantitative CRDS experiment. We then briefly discuss the features and objectives of three CRDS experiments in our laboratory: the first uses a continuous wave CO2 laser operating in the 900 cm-1 to 1100 cm-1 region, the second uses a pulsed optical parametric oscillator operating in the 5500 cm-1 to 7200 cm-1 region, and the third experiment uses an external cavity diode laser operating in the 10500 cm-1 to 10860 cm-1 region.
Proceedings Title: Proceedings of the 19th International Conference on Spectral Line Shapes
Volume: Volume 12`
Conference Dates: June 3-7, 2002
Conference Location: Berkeley, CA
Pub Type: Conferences
infrared absorption, line shapes, spectroscopy