Direct optically pumped multiwavelength CO2 laser

An HF laser was used to directly pump various isotopic forms of CO2. Intense laser emission was observed on numerous lines in the 4.3-, 10.6-, and 17-μm regions. All observed 4.3- and 17-μm CO2 laser emission lines were assigned. The pressure dependence of lasing spectra and laser pulse temporal features were examined.