A01=J.J Stamnes
acoustic wave focusing
advanced diffraction simulation techniques
Angular Aperture
Angular Spectrum
Angular Spectrum Representation
Aperture Plane
Author_J.J Stamnes
Category=PHJ
caustics and shadow boundaries
Debye Approximation
Diffracted Field
Diffracted Ray
Diffraction Integrals
Diffraction Problem
Diffraction Theory
electromagnetic field computation
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Exit Pupil
Fresnel Number
Geometrical Focal Plane
Geometrical Focal Point
Geometrical Image Point
Geometrical Optics Field
Geometrical Ray
Geometrical Shadow Boundaries
Interior Stationary Point
Jakob J Stamnes
Kirchhoff Approximation
nonlinear wave theory
Parabolic Approximation
scalar wave modeling
Shadow Boundary
Spectral Amplitudes
SSP Method
wave propagation analysis
Zone Plate Lens
Product details
- ISBN 9780852744680
- Weight: 940g
- Dimensions: 156 x 234mm
- Publication Date: 01 Jan 1986
- Publisher: Taylor & Francis Ltd
- Publication City/Country: GB
- Product Form: Hardback
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Using numerous mathematical and numerical techniques of diffraction theory, Waves in Focal Regions: Propagation, Diffraction and Focusing of Light, Sound and Water Waves provides a full and richly illustrated description of waves in focal regions. Unlike most books, the author treats electromagnetic, acoustic, and water waves in one comprehensive volume.
After an introductory section, the book describes approximate diffraction theories and efficient numerical methods to study the focusing of various kinds of waves. It then covers the physical interpretation of the theories, their accuracy, and the computational savings obtained, emphasizing uniform asymptotic results that remain valid in the vicinity of shadow boundaries and caustics. The next part deals with the focusing of scalar waves, including thorough theoretical analyses and detailed contour maps of diffraction patterns in focal regions for a variety of different system parameters, such as f-number, Frensel number, aperture shape, amplitude distribution, and wavefront aberration. The author proceeds to explore the diffraction and focusing of electromagnetic waves. First solutions are derived for fields radiated by sources, reflected and refracted at plane interfaces, or diffracted by apertures in plane screens, and then these solutions are applied to study the focusing in homogeneous media and through a plane dielectric interface. In both cases, the author includes many computed results of the electromagnetic field distribution near focus. Presenting both theoretical and experimental results, the following part examines the focusing of sound and water waves by means of zone-plate lenses. The book concludes with a detailed study of the diffraction and focusing of water waves and a comparison of the results of both linear and nonlinear theories with those of experiments.
