Knowledge Bank

The line intensities of the two $\Sigma - \Sigma $ bands in 2.7 $\mu$ region and the three $\Sigma - \Sigma $ bands with their associated $\Pi -\Pi$ ``hot’’ bands in the 2.0 $\mu$ region have been measured with relatively low sample pressures and high resolution. The data are analyzed to obtain the total band intensities and dipole-moment matrix elements. These matrix elements are of importance for the calculation of the effect of Coriolis interaction on the line intensities of the weak Fermi triplet $\Sigma -\Pi$ bands in the 3.0 $\mu$ region.