Fluorescence Resonance Energy Transfer Near Thin Films on Surfaces |
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Authors: | Joel I Gersten |
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Institution: | (1) Department of Physics, City College of the City University of New York, New York, NY 10031, USA |
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Abstract: | A theory is developed for resonant energy transfer between donor and acceptor molecules outside of a solid coated with a thin
film. The energy transfer rate is expressed in terms of a second-rank tensor, allowing one to consider all possible orientations
of the transition dipole moments of the molecules. The theory of images is employed to construct expressions valid in the
near-field approximation. This theory is extended to the full electrodynamic theory valid over all distances. Connections
are made between the expressions for the image charges and the Fresnel coefficients from optics. It is found that the energy
transfer rates are strongly influenced by surface resonances, including the interfacial surface plasmons and the two-dimensional
plasmon of a metallic film. The possibility of the film supporting Fabry–Perot resonator modes is discussed. |
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Keywords: | Fluorescence Energy transfer Plasmons Electrodynamics Thin films |
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