An. Kireev et al., COLOR-CENTER LASER OBSERVATION OF SATURAT ED ABSORPTION RESONANCES ATTHE R-BRANCH LINES OF THE NU-3 BAND OF THE METHANE MOLECULE, Kvantovaa elektronika, 21(10), 1994, pp. 901-902
A tunable colour-centre laser was used in a study of Doppler-free satu
rated absorption resonances at the r lines of the nu3 band of the meth
ane molecule (lambda = 3.2-3.3 mum). The spectral resolution was 300 k
Hz for a configuration with an intracavity absorption cell. The laser
is suitable for the investigation of any of the R and Q lines of the n
u3 methane band and the long-wavelength limit of the tuning range reac
hed the P(2) line.