Elsevier

Thin Solid Films

Volume 208, Issue 2, 28 February 1992, Pages 269-273
Thin Solid Films

Surface plasmon polariton studies of highly absorbing Langmuir-Blodgett films

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Abstract

In this study, surface plasmon resonance studies of Langmuir-Blodgett multilayers have been used to characterize an optically highly absorbing zwitterionic material which would be difficult to otherwise analyse. By fitting reflectivity data with Fresnel theory for a range of wavelengths it has been possible to obtain the real and imaginary parts of the assumed-isotropic dielectric optical permittivity over the visible part of the spectrum. These results show an asymmetric resonance peak which may be interpreted as being a composite of two resonances, one associated with an intermolecular dipole transition and one with an intramolecular dipole.

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