Predicted fluorescence mechanism in highly isolated molecules - The Poincare fluorescence

Details Predicted fluorescence mechanism in highly isolated molecules - The Poincare fluorescence Predicted fluorescence mechanism in highly isolated molecules - The Poincare fluorescence

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvl..60..921l&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 60, March 7, 1988, p. 921-924.

Physics

25

Fluorescence, Infrared Radiation, Interstellar Matter, Isoenergetic Processes, Molecular Energy Levels, Ultraviolet Absorption, Ion Motion, Molecular Spectra, Poincare Problem

Scientific paper

A completely new behavior of fluorescence for molecules of large or intermediate size which are highly isolated is predicted. After UV absorption, the energy decay by IR emission alone is very slow. The system evolves at constant energy during a long time period in its phase space, and unusual phenomena can occur. An inverse internal conversion and a resulting recurrent fluorescence is inferred and designated as Poincare fluorescence. It is shown that interstellar conditions are appropriate for such a process.

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