1996
DOI: 10.1063/1.471204
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Molecular-orbital decomposition of the ionization continuum for a diatomic molecule by angle- and energy-resolved photoelectron spectroscopy. I. Formalism

Abstract: A theoretical formalism is developed for the quantum-state-specific photoelectron angular distributions ͑PADs͒ from the direct photoionization of a diatomic molecule in which both the ionizing state and the state of the ion follow Hund's case ͑b͒ coupling. The formalism is based on the molecular-orbital decomposition of the ionization continuum and therefore fully incorporates the molecular nature of the photoelectron-ion scattering within the independent electron approximation. The resulting expression for th… Show more

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Cited by 69 publications
(77 citation statements)
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“…17-22,38 -52 A related method is to employ REMPI coupled with photoelectron spectroscopy. 26,27,[53][54][55][56][57] The resolution is not quite as high for such experiments, but the capability of determining angularly resolved photoelectron maps is extremely powerful. Indeed, this photoelectron mapping has developed into a useful tool for determining the angular momentum composition of the photoelectron wave function, as well as for studying the intramolecular ''alignment evolution'' dynamics.…”
Section: ͑1͒mentioning
confidence: 99%
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“…17-22,38 -52 A related method is to employ REMPI coupled with photoelectron spectroscopy. 26,27,[53][54][55][56][57] The resolution is not quite as high for such experiments, but the capability of determining angularly resolved photoelectron maps is extremely powerful. Indeed, this photoelectron mapping has developed into a useful tool for determining the angular momentum composition of the photoelectron wave function, as well as for studying the intramolecular ''alignment evolution'' dynamics.…”
Section: ͑1͒mentioning
confidence: 99%
“…For example, Cooper minima 4 -8 and shape resonances [9][10][11][12][13][14][15][16] typically extend over a range of 10-50 eV, and it is hence desirable to study rotational distributions over a comparable range. Unfortunately, rotationally resolved photoelectron experiments are typically limited to the near-threshold region [17][18][19][20][21][22][23][24][25][26][27] ͑although recent progress has resulted in partially rotationally resolved photoelectron data over a significant range 28,29 ͒. In our previous studies, we demonstrated that dispersed fluorescence is capable of determining energy-dependent aspects of rotationally resolved effects in molecular photoionization over the broadest energy range.…”
Section: Introductionmentioning
confidence: 99%
“…For atomic systems this is a good approximation, and allows for a simplified treatment of the photoionization dynamics, but for molecules this assumption does not hold (due to the loss of spherical symmetry in the core region) and all m components must be treated explicitly (see, e.g., refs. [15,16]). …”
Section: A 1-photon Ionization By the Xuv Fieldmentioning
confidence: 99%
“…However, as eluded to previously, for molecular systems many angular momentum components are typically expected, due to the loss in symmetry of the scattering potential at short range, and the problem becomes more complex; for discussion on this topic see, for instance, refs. [15,16].…”
Section: Final State Wavefunctionsmentioning
confidence: 99%
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