title: Sensitivity enhancement of a spin-flip Raman laser absorption spectrometer through use of an intracavity absorption cell.
abstract: Gas-phase molecular spectroscopy is performed with a cw, external-cavity spin-flip Raman laser containing an intracavity absorption cell. Significantly enhanced sensitivity is demonstrated under marginal oscillator conditions obtained by decreasing the laser gain to a level comparable with the absorption loss of the cell. Spectra of nitric oxide and carbonyl sulfide are discussed to illustrate the performance achieved.
authors.forename: N
authors.initials: N
authors.lastname: Dutta
authors.forename: R T
authors.initials: RT
authors.lastname: Warner
authors.forename: G J
authors.initials: GJ
authors.lastname: Wolga