Knowledge Bank

The ozone molecule has its three fundamental, vibrations $\nu 2,\nu 3,\nu 1$ respectively located at $701cm-11042cm-1,1103cm-1$. The pure rotational spectrum of these states has been studied in the range 10 - 120 GHz using a Stark effect spectrometer. The results obtained will be summarized. In the $10\mu m$ region, some transitions between the $\nu 3$ or $\nu 1$ state and the ground state are very close to $CO2$ laser emissions: on the one hand, the use of a $CO2$ waveguide laser allows the measurement of some absorption frequencies: on the other, a $CO2$ laser is used for optically pumping an ozone submillimeter laser. Some emission frequencies are given.