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An Equation for the Field Amplitude in Geometrical Optics (Classic Reprint) - Couverture souple

Kay, Irvin

 
9781334016288: An Equation for the Field Amplitude in Geometrical Optics (Classic Reprint)

Synopsis

Explore how geometrical optics helps analyze wave propagation in complex media. Learn practical methods to extend theory to inhomogeneous environments.

Geometrical optics provides a framework for understanding how electromagnetic waves travel through media where the index of refraction varies. This edition focuses on the scalar two-dimensional wave equation and shows how to derive a transport equation for the field amplitude, then couple it with ray paths to enable numerical solutions.

  • Derive and solve the key differential equations that connect ray paths with field amplitude
  • See how to extend the theory to caustics and shadow regions using complementary approaches
  • Explore examples, including homogeneous media and refractive indices depending on a single variable
  • Learn how numerical techniques and analog computer concepts can aid practical analysis
Ideal for readers who want a practical, math‑grounded approach to wave propagation in inhomogeneous media and related optical problems.

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