Cavity ring-down (CRD) spectroscopy is a direct absorption technique, which can be
performed with pulsed or continuous light sources and has a significantly higher sensitivity …

Methane is the most frequently analyzed gas with different concentrations ranging from
single ppm or ppb to 100%. There are a wide range of applications for gas sensors including …

The editors have assembled a world-class group of contributors who address the questions
the combustion diagnostic community faces. They are chemists who identify the species to …

Much of the important chemistry of the atmosphere takes place on exceedingly small
concentration scales, with principle components occurring at mixing ratios that vary from the …

Nous faisons une revue historique des méthodes de spectroscopie laser qui utilisent des
résonateurs optiques de grande finesse. La revue débute avec les premiers travaux sur …

We describe and compare two schemes of high-sensitivity cavity ringdown spectroscopy
(CRDS), both functioning with telecom diode lasers. The first (cw-CRDS) gives high spectral …

Cavity-enhanced direct frequency comb spectroscopy combines broad spectral bandwidth,
high spectral resolution, precise frequency calibration, and ultrahigh detection sensitivity, all …

A spectroscopic gas sensor for nitric oxide (NO) detection based on a cavity ringdown
technique was designed and evaluated. A cw quantum-cascade distributed-feedback laser …

As a result of a combination of an external cavity and modulation techniques, noise-immune
cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) is one of the …

We present a simple method to determine simultaneously the main characteristics of passive
or active high-Q optical resonators. The method is based on cavity ringdown spectroscopy …