Accession Number:

ADA626992

Title:

Modern Electromagnetic Scattering

Descriptive Note:

Doctoral thesis

Corporate Author:

COLORADO SCHOOL OF MINES GOLDEN DEPT OF PHYSICS

Personal Author(s):

Report Date:

2013-08-10

Pagination or Media Count:

134.0

Abstract:

We develop a numerically stable algorithm for electromagnetic wave propagation through planar stratified media. This algorithm is implemented in a modern programming language and is suitable for the study of such applications as Anderson localization and perfect lensing. Our algorithm remains numerically stable even in the presence of large absorption. Furthermore, in the context of the linear response laws and causality, we analyze a vanishing absorption approximation, which is commonly used in wave scattering problems. We show that it is easy to violate causality in the frequency-domain by making the vanishing absorption approximation. We also develop an orders-of-scattering approximation, termed screened cylindrical voidcore SCV approximation, for wave scattering from a large host cylinder containing N eccentrically embedded core cylinders. The SCV approximation is developed via separation of variables and a cluster T -matrix. We establish the limitations of the SCV approximation and it is in good agreement with the numerically-exact solution. Furthermore, we illustrate that the large host cylinder model with N cylindrical inclusions can be used to theoretically and experimentally investigate strong multiple scattering effects in random media, such as Anderson localization.

Subject Categories:

  • Electrical and Electronic Equipment
  • Plasma Physics and Magnetohydrodynamics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE