Cavity ring-down spectrography

We propose a modified cavity ring-down spectroscopy (CRDS) technique. A pulsed broad band laser is applied as a light source while a spectrograph equipped with gated ICCD camera is used for the signal detection. The signal is simultaneously analyzed at various wavelengths within the laser line width. It allows to get the information on absorption spectra much faster and more reliable than by means of classical CRDS method with tunable laser.