Theoretical methods for the calculation of the multiphoton ionisation cross-section of atoms and molecules
Some of the available theoretical methods to compute the two-photon ionisation cross-section of many-electron systems are reviewed. In particular the problems concerning the computation of (i) reliable approximations for the transition matrix elements and the excitation energies; and (ii) accurate results pertaining to the electronic continuum by the use of L2 basis functions are considered.
Volume 135, 2023
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