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Electromagnetic Surface Waves by Akhlesh Lakhtakia, Tom Mackay, John Polo

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Chapter 3

General Theory of Surface-Wave Propagation

3.1 Introduction

Chapter 2 was chiefly devoted to the propagation of the surface-plasmon-polariton wave guided by the planar interface of a metal and a homogeneous, isotropic, and dielectric material. The important features of this SPP wave emerge from solving a canonical boundary-value problem, although practical implementation requires the use of a prism-coupled configuration, a grating-coupled configuration, or a waveguide-coupled configuration.

If the partnering dielectric material were to be anisotropic and periodically nonhomogeneous normal to the metal/dielectric interface, multiple SPP-wave modes may be guided by that interface along a specified direction, all of the same frequency. Isotropy ...

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