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Proceedings Paper

Nonlinear Optics And Electro-Optics In Langmuir-Blodgett Films
Author(s): G H 1 Cross; I R Peterson; I R Girling
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Paper Abstract

The electro-optic response of nonlinear supermolecular arrays of organic dyes, prepared by the Langmuir-Blodgett (LB) technique is measured by an attenuated total reflection (ATR) method. The field induced dielectric constant changes in the films modify the coupling conditions for the excitation of a silver surface plasmon mode and produces a differential reflectivity in the region of the ATR minimum. The magnitude of the response is measured for film thicknesses corresponding to 1 through to 13 monomolecular LB layers. An anomalous dependence is seen. The anomaly occurs at a film thickness which segregates two thickness regimes for which the differential responses are qualitatively dissimilar. Structural re-organisations in the thin film regime may be responsible.

Paper Details

Date Published: 4 February 1988
PDF: 14 pages
Proc. SPIE 0824, Advances in Nonlinear Polymers and Inorganic Crystals, Liquid Crystals and Laser Media, (4 February 1988); doi: 10.1117/12.941964
Show Author Affiliations
G H 1 Cross, GEC Research Limited (United States)
I R Peterson, GEC Research Limited (United States)
I R Girling, GEC Research Limited (United States)

Published in SPIE Proceedings Vol. 0824:
Advances in Nonlinear Polymers and Inorganic Crystals, Liquid Crystals and Laser Media
Solomon Musikant, Editor(s)

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