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Ocean and Seabed Acoustics: A Theory of Wave Propagation by George V. Frisk - Woods Hole Oceanographic Institution

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Chapter 3. Plane WaveReflection from PlanarBoundaries

There are two ways of spreading light: to beThe candle or the mirror that reflects it.Edith Wharton, c. 1900

3.1 Introduction

Plane waves of infinite extent are figments of the theoretical physicist’s imagination. Realistic sources produce wavefronts with finite curvature, and homogeneous half-spaces of the type we will discuss in this chapter do not exist in nature. Yet there are no concepts more fundamental in wave physics than those of plane wave propagation and interaction with boundaries. In addition to contributing directly to our understanding of wave phenomena, the study of plane wave propagation and reflection provides us with a means by which we can analyze more complicated problems. ...

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