TY - JOUR
T1 - Cooperative features of the fluorescence from molecular beam-foil dissociation fragments
AU - Kurizki, Gershon
AU - Ben-Reuven, Abraham
PY - 1986/3/1
Y1 - 1986/3/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0022023344&partnerID=8YFLogxK
U2 - 10.1016/0168-583X(86)90499-4
DO - 10.1016/0168-583X(86)90499-4
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0022023344
SN - 0168-583X
VL - 13
SP - 184
EP - 188
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 1-3
ER -