Abstract
The ray optical technique, comprising of geometrical optics and its extensions, provides simple and physical approaches to the description of the diffraction of an electromagnetic wave by an object. The technique relies upon a number of principles, which, though they may not be rigorous from a mathematical point of view, nonetheless provide approximate solutions to problems that would otherwise be intractable by using analytical or numerically rigorous techniques. In this chapter, we begin by enunciating the principles of ray optics and show how they enable us to extract the essential characteristics of various scattering phenomena.
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© 1997 Springer-Verlag Berlin Heidelberg
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Bouche, D., Molinet, F., Mittra, R. (1997). Ray Optics. In: Asymptotic Methods in Electromagnetics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60517-8_1
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DOI: https://doi.org/10.1007/978-3-642-60517-8_1
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