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Investigations in the theory of electromagnetic scattering from expanding dielectric obstacles


Pogorzelski, Ronald J. (1970) Investigations in the theory of electromagnetic scattering from expanding dielectric obstacles. Dissertation (Ph.D.), California Institute of Technology.


An equation for the reflection which results when an expanding dielectric slab scatters normally incident plane electromagnetic waves is derived using the invariant imbedding concept. The equation is solved approximately and the character of the solution is investigated. Also, an equation for the radiation transmitted through such a slab is similarly obtained. An alternative formulation of the slab problem is presented which is applicable to the analogous problem in spherical geometry. The form of an equation for the modal reflections from a nonrelativistically expanding sphere is obtained and some salient features of the solution are described. In all cases the material is assumed to be a nondispersive, nonmagnetic dielectric whose rest frame properties are slowly varying.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Electrical Engineering
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Papas, Charles Herach
Thesis Committee:
  • Unknown, Unknown
Defense Date:7 August 1969
Funding AgencyGrant Number
Northrop CorporationUNSPECIFIED
Record Number:CaltechTHESIS:08202015-163157997
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9111
Deposited By: Leslie Granillo
Deposited On:21 Aug 2015 15:11
Last Modified:21 Aug 2015 15:11

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