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Improved Refractive Index from a Planar Leaky Wave-Guide Coupler

Published online by Cambridge University Press:  10 February 2011

Tao Liu  and
Robert J. Samuels
Tao Liu
Affiliation:
School of Chemical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0100
Robert J. Samuels
Affiliation:
School of Chemical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0100
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Abstract

Modal loss coefficients for a planar leaky wave-guide are obtained by two new methods. One is a numerical calculation combining optical thin film theory with optical wave-guide theory; another is an analytical derivation based on analogy to Beer's law. Considering the influence of the modal loss, a modified mode equation for the planar leaky wave-guide is obtained, which greatly increases the accuracy of the refractive index and thickness of the thin film in a planar leaky wave-guide coupler (prism I film I substrate).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 597: Symposium PP – Thin Films for Optical Waveguide Devices & Materials … , 1999 , 57
Copyright
Copyright © Materials Research Society 2000

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