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arXiv · 1410.5360

Photoionization microscopy in terms of local frame transformation theory

P. Giannakeas·F. Robicheaux·Chris H. Greene
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Abstract

Two-photon ionization of an alkali-metal atom in the presence of a uniform electric field is investigated using a standardized form of local frame transformation and generalized quantum defect theory. The relevant long-range quantum defect parameters in the combined Coulombic plus Stark potential is calculated with eigenchannel R-matrix theory applied in the downstream parabolic coordinate $η$. The present formulation permits us to express the corresponding microscopy observables in terms of the local frame transformation, and it gives a critical test of the accuracy of the Harmin-Fano theory permitting a scholastic investigation of the claims presented in Zhao {\it et al.} [Phys. Rev. A 86, 053413 (2012)].

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P. Giannakeas, F. Robicheaux, Chris H. Greene. 2014-10-27. Photoionization microscopy in terms of local frame transformation theory. https://doi.org/10.1103/physreva.91.043424

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