5 Light Propagation in a Dielectric Waveguide
In this chapter we present mathematical models for light propagation within a two-dimensional slab waveguide. First, the conditions necessary for a light wave to propagate within the waveguide are explained. Then we derive the equations for the electric and magnetic field amplitudes of transverse electric and transverse magnetic modes and discuss the properties of the evanescent waves in the media just outside of the waveguide.
5.1 Conditions for Guided Waves
In Chapter 4 we explored the situation where the light propagating with in one medium encountered a single planar interface to a different medium. Here we will extend our investigation to the situation where three different media are present. ...
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