NTRS - NASA Technical Reports Server

Back to Results
Transition operators in electromagnetic-wave diffraction theory. II - Applications to opticsThe theory developed by Hahne (1992) for the diffraction of time-harmonic electromagnetic waves from fixed obstacles is briefly summarized and extended. Applications of the theory are considered which comprise, first, a spherical harmonic expansion of the so-called radiation impedance operator in the theory, for a spherical surface, and second, a reconsideration of familiar short-wavelength approximation from the new standpoint, including a derivation of the so-called physical optics method on the basis of quasi-planar approximation to the radiation impedance operator, augmented by the method of stationary phase. The latter includes a rederivation of the geometrical optics approximation for the complete Green's function for the electromagnetic field in the presence of a smooth- and a convex-surfaced perfectly electrically conductive obstacle.
Document ID
Document Type
Reprint (Version printed in journal)
Hahne, G. E. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
February 1, 1993
Publication Information
Publication: Physical Review E - Statistical Physics, Plasmas Fluids, and Related Interdisciplinary Topics
Volume: 47
Issue: 2
ISSN: 1063-651X
Subject Category
Distribution Limits