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Windowed Integral Equation Methods for Problems of Scattering by Defects and Obstacles in Layered Media

Citation

Pérez Arancibia, Carlos Andrés (2017) Windowed Integral Equation Methods for Problems of Scattering by Defects and Obstacles in Layered Media. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/Z9GQ6VQT. http://resolver.caltech.edu/CaltechTHESIS:08182016-124629380

Abstract

This thesis concerns development of efficient high-order boundary integral equation methods for the numerical solution of problems of acoustic and electromagnetic scattering in the presence of planar layered media in two and three spatial dimensions. The interest in such problems arises from application areas that benefit from accurate numerical modeling of the layered media scattering phenomena, such as electronics, near-field optics, plasmonics and photonics as well as communications, radar and remote sensing.

A number of efficient algorithms applicable to various problems in these areas are pre- sented in this thesis, including (i) A Sommerfeld integral based high-order integral equation method for problems of scattering by defects in presence of infinite ground and other layered media, (ii) Studies of resonances and near resonances and their impact on the absorptive properties of rough surfaces, and (iii) A novel Window Green Function Method (WGF) for problems of scattering by obstacles and defects in the presence of layered media. The WGF approach makes it possible to completely avoid use of expensive Sommerfeld integrals that are typically utilized in layer-media simulations. In fact, the methods and studies referred in points (i) and (ii) above motivated the development of the markedly more efficient WGF alternative.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:integral equation methods, layered media, electromagnetic scattering
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Applied And Computational Mathematics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Bruno, Oscar P.
Thesis Committee:
  • Bruno, Oscar P. (chair)
  • Meiron, Daniel I.
  • Owhadi, Houman
  • Schroeder, Peter
Defense Date:15 August 2016
Non-Caltech Author Email:caperezar (AT) gmail.com
Record Number:CaltechTHESIS:08182016-124629380
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:08182016-124629380
DOI:10.7907/Z9GQ6VQT
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9902
Collection:CaltechTHESIS
Deposited By: Carlos Perez Arancibia
Deposited On:25 Aug 2016 23:29
Last Modified:16 Jun 2017 22:27

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