Theoretical absorption spectra of ArKr

We present the results of ab initio calculations for the ArKr+ potential-energy curves. The curves and calculated transition moments have been used to calculate the cross section for absorption from the bound ground state. After including spin-orbit interaction, two strong absorptions are predicted with peak cross sections and wavelengths of 1.3×10−16 cm2 at 295 nm and 4.8×10−18 cm2 at 376 nm. The 295-nm absorption band has a cross section of 1.5×10−17 cm2 at the 248-nm wavelength of KrF.