The role of excited states in multiphoton ionization |
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| Authors: | Pert G. |
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| Affiliation: | Dept. of Applied Physics, University of Hull, Hull, England; |
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| Abstract: | The mixing of the excited states of an atom with the ionization continuum is considered by a modification of Fano's theory of autoionization. It is shown that in the case of the noble gases this leads to a reduction of the threshold power-law indexKfromI/hbaromegatoE_{n}/hbaromega(whereIis the ionization energy, Enthe lowest excited state energy, andhbaromegathe photon energy) as found experimentally. |
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