One- and two-photon ionization of hydrogen atom embedded in Debye plasmas

2013/09/01 by T. N. Chang, T. K. Fang, Y. K. Ho · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates

paper · doi:10.1063/1.4821123

openalex publication_date 2013/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11

Abstract

We present a detailed analysis of the plasma-induced resonance-like atomic structures near the ionization threshold in one- and two-photon ionization of hydrogen atom. Such resonance-like structures result from the migration of the upper bound excited states of bound-bound atomic transitions into the continuum due to the less attractive screened Coulomb potential which simulates the external environmental effect for an atom embedded in Debye plasma. The change from the resonance-like narrow structures into broad continuous spectra as the plasma effect increases could be accounted for by the overlap between the respective wavefunctions of the atomic electron in the initial state and its corresponding outgoing ionized state in the continuum.

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