G. Cazzoli, L. Cludi, C. D. Esposti
Feb 1, 1992
Journal of Molecular Spectroscopy
Abstract Absorption Lamb-dips have been observed for the first time in the far infrared region using an optically pumped FIR laser side band spectrometer with a Fabry-Perot cavity as an absorption cell. Examples of saturation dips are presented for rotational lines of OCS, CHF 2 Cl, and CH 3 Br in the 23-cm −1 region.