Photoionization microscopy of the lithium atom: Wave-function imaging of quasibound and continuum Stark states

Cohen, S.; Harb, M. M.; Ollagnier, A.; Robicheaux, F.; Vrakking, M. J. J.; Barillot, T.; Lépine, F.; Bordas, C.

doi:10.1103/PhysRevA.94.013414

Photoionization microscopy of the lithium atom: Wave-function imaging of quasibound and continuum Stark states

Journal Article · Mon Jul 18 20:00:00 EDT 2016 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.94.013414· OSTI ID:2569804

Cohen, S. ^[1]; Harb, M. M. ^[2]; Ollagnier, A. ^[2]; Robicheaux, F. ^[3]; Vrakking, M. J. J. ^[4]; Barillot, T. ^[2]; Lépine, F. ^[2]; Bordas, C. ^[2]

University of Ioannina (Greece)
Université Lyon (France)
Purdue University, West Lafayette, IN (United States)
Max-Born-Institut, Berlin (Germany)

Photoionization of an atom in the presence of a uniform static electric field provides the unique opportunity to expand and visualize the atomic wave function at a macroscopic scale. In a number of seminal publications dating back to the 1980s, Fabrikant, Demkov, Kondratovich, and Ostrovsky showed that this goal could be achieved by projecting slow (meV) photoionized electrons onto a position-sensitive detector and underlined the distinction between continuum and resonant contributions. Here, the uncovering of resonant signatures was achieved fairly recently in experiments on the nonhydrogenic lithium atoms [Cohen et al., Phys. Rev. Lett. 110, 183001 (2013)]. The purpose of the present article is the general description of these findings, with emphasis on the various manifestations of resonant character. From this point of view, lithium has been chosen as an illustrative example between the two limiting cases of hydrogen, where resonance effects are more easily identified, and heavy atoms like xenon, where resonant effects were not observed.

View Accepted Manuscript (DOE)

Research Organization:: Purdue University, West Lafayette, IN (United States)

Sponsoring Organization:: Centre National de la Recherche Scientifique (CNRS); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012193

OSTI ID:: 2569804

Alternate ID(s):: OSTI ID: 1264794

Journal Information:: Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 94; ISSN 2469-9934; ISSN 2469-9926

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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