Cooperative features of the fluorescence from molecular beam-foil dissociation fragments

Gershon Kurizki*, Abraham Ben-Reuven

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Two possible mechanisms leading to non-exponentially decaying time-resolved fluorescence from fragments of molecular beam-foil scattering are theoretically discussed: (a) Cooperative emission by similar (identical or near-resonant) fragments undergoing long-range radiative coupling; (b) Stark-perturbed emission of a (neutral or ionic) fragment interacting with an ionic partner. The various features of the emission, such as subradiant versus superradiant rates, and monotonous versus ringing decay, and their relation to properties of the electronic state of the parent molecular system emerging from the foil (e.g., its electronic angular momentum and inversion symmetry) are compared for the two mechanisms. Particular emphasis is placed on H+2 scattering, and suggestions are made for experiments in order to identify the mechanism leading to non-exponential emission, and to infer rates of formation of various excited molecular states.

Original languageEnglish
Pages (from-to)184-188
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number1-3
StatePublished - 1 Mar 1986


Dive into the research topics of 'Cooperative features of the fluorescence from molecular beam-foil dissociation fragments'. Together they form a unique fingerprint.

Cite this