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Publication
The Journal of Chemical Physics
Paper
Reflection of light from monomolecular layers on metal surfaces
Abstract
A theory is presented of the electronic spectra, at optical frequencies, of a monolayer of dye molecules a fixed distance from a metal surface. The coupling of the exciton polariton states of the dye laser to the plasmon surface polariton modes of the metal leads to a large enhancement in the absorption of the dyes as measured by attenuated total internal reflection. This technique uses a prism to couple out the polariton modes of the monolayer-metal system. Model calculations that explore the type of phenomena expected are described for a cyanine dye monolayer close to a plane surface of silver. © 1978 American Institute of Physics.