Theory of diffraction

انگليسي.

Preface.- Heuristic Approaches in High-Frequency Theory of Diffraction: Geometrical Tenderncies in High-Frequency Theory of Diffraction.- Tendencies and Recent Novelties in the heuristic Methods.- Geometrical Optics (GO): The Scalar Wave Field.- Electromagnetic Waves.- Space-Time Geometrical Optics.- Applicability of Geometrical Optics.- Complex Geometrical Optics (CGO): Basic Equations of CGO.- Complex Rays and Ray-Based Form of CGO.- Paraxial CGO.- Paraxial (Quasi-Optical) Approximation: Parabolic Wave-Equation.- Paraxial Wave-Equation in Time-Domain.- Finite-Difference-Type Solutins of PWEs.- Geometrical Theory of Diffraction (GTD) and Improvements of Kirchhoff's Approach: Canonical Problems.- Geometircal Theory of Diffraction (GTD).- Kirchhoff's Approach and its Improvements.- Heuristic Range of Validity of GTD.- Caustic Wave-Fields: Caustics as Catastrophes.- Maslov's Method and the Method of Interference Integrals.- Other Kinds of Caustics and Standard Integrals.- References.- Index.