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Determination of Linear and Nonlinear Optical Properties of a Polymer Thin Film

Published online by Cambridge University Press:  21 February 2011

H.M.M. Klein Koerkamp
Affiliation:
Departments of Electrical Engineering and Applied Physics, Transducers and Materials Science Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
T.H. Hoekstra
Affiliation:
Departments of Electrical Engineering and Applied Physics, Transducers and Materials Science Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
A. Driessen
Affiliation:
Departments of Electrical Engineering and Applied Physics, Transducers and Materials Science Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
Th.J.A. Popma
Affiliation:
Departments of Electrical Engineering and Applied Physics, Transducers and Materials Science Group, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
G.R. Mohlmann
Affiliation:
Research Laboratories, P.O.Box 9300, 6800 SB Arnhem, The Netherlands
W.H.G. Horsthuis
Affiliation:
Research Laboratories, P.O.Box 9300, 6800 SB Arnhem, The Netherlands
E.W.P. Erdhuisen Akzo
Affiliation:
Research Laboratories, P.O.Box 9300, 6800 SB Arnhem, The Netherlands
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Abstract

The second- and third-order nonlinear susceptibilities χ(2) and χ(3) of a polymer thin film are determined for three wavelengths (543.Snm, 632.8nm and 1523nm) using a method based on the linear and quadratic electro-optic effect. The frequency dependences of χ(2) and χ(3), deduced from a simple two-level electron-spring model, are consistent with our experimental results. Using this frequency dependence the intensitydependent refractive index, determined by nonlinear grating coupling, is transformed to a χ(3) value for the quadratic electro-optic effect. This value is in good agreement with our experiments. The layer structure used is simple and consists basically of a polymer layer sandwiched between thin metal electrodes.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

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