Applied Physics B

, Volume 38, Issue 3, pp 171–178 | Cite as

Electromagnetic propagation at interfaces and in waveguides in uniaxial crystals

Surface impedance/admittance approach
  • A. Knoesen
  • M. G. Moharam
  • T. K. Gaylord
Contributed Papers


The use of surface-impedance and surface-admittance concepts for analyzing reflection and refraction at an isotropic dielectric interface (first developed about 1938) is extended to include an interface between uniaxial birefringent dielectrics. Total internal reflection and the polarizing (Brewster) angle at an anisotropic interface are shown to be naturally explainable in terms of surface impedance (for TM polarization) and surface admittance (for TE polarization). The allowable modes in an integrated optical uniaxial asymmetric dielectric slab waveguide are also shown to be directly obtainable using the surface impedance/admittance approach. Numerical examples are presented.


42.10.Qj 42.80.Lt 42.82+n 


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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • A. Knoesen
    • 1
  • M. G. Moharam
    • 1
  • T. K. Gaylord
    • 1
  1. 1.School of Electrical EngineeringGeorgia Institute of TechnologyAtlantaUSA

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