Spectroscopy of the OsO4 and SF6 molecules by a tunable high-pressure CO2 waveguide laser

The development is reported of a cw high-pressure CO₂ waveguide laser having a tuning band of 1.2 GHz within the strong P-branch lines of the 00^o1–10^o0 transition in CO₂ (P12–P24). Absorption spectra of the OsO₄ and SF₆ molecules were investigated with a resolution of 10^–7 by the method of nonlinear spectroscopy using this laser.