We have calculated the two-photon above-threshold-ionization cross sections of rare-gas atoms by extreme ultraviolet (xuv) photons in the extended framework of multichannel quantum defect theory. Since free-free dipole moments do not converge in the length gauge, we have made the combined use of the length gauge for small r and the acceleration gauge for large r. The two-photon above-threshold ionization cross sections for Xe and Ar associated with the p⁵[²P3∕2] and p⁵[²P1∕2] ionic core states are calculated to be 1.0×10^-510.3em0excm⁴0.2em0exs and 2.0×10^-510.3em0excm⁴0.2em0exs, respectively, for 251000-0pteV photons.
No takes yet. Share an insight, caveat, or question.
Nakajima et al. (2004) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: