Pure rotational HF laser oscillations from exploding-wire laser

We report 19 pure rotational HF laser transitions, 5 of which are new, from exploding-wire, metal atom oxidation lasers. The laser operates at F2pressures as high as 500 torr and at a gain length of only 0.24 m. The laser pulses are1-4 \mus duration and deliver\sim10^{-4}J/pulse.