Two-photon excitation of xenon

Abstract

The two-photon excitation parameter for the ground state to $6p {}_{}{}^2{}_{}{}^{}P_{\frac{3}{2}}^{}{}_{}{}^{} \mathrm{}(J=0\mathrm{})\mathrm{}$ excited-state transition in xenon is calculated in both the Dirac-Fock and Hartree-Fock approximations. We make a direct summation over the bound and continuum intermediate states. Our results are compared with calculations based on the average-energy closure method and the results of a recent experiment by Chen et al.