Accession Number : ADA202298

Title :   An Invariant Imbedding T Matrix Approach to Electromagnetic Scattering.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA CHEMISTRY AND PHYSICS LAB

Personal Author(s) : Johnson, Bernard R.

Report Date : 31 AUG 1988

Pagination or Media Count : 50

Abstract : A new method for calculating electromagnetic scattering from an arbitrary shaped, inhomogeneous, dielectric object is developed. The method is based on an invariant imbedding procedure for computing the T matrix that was originally developed to solve quantum mechanical scattering problems. The final outcome of this approach is a two-term recurrence relation which can be solved numerically for the T matrix. The limiting form of this recurrence relation is a first-order nonlinear differential equation that is identical in form to the quantum mechanical Calogero equation. The results of several test calculations are also presented. Keywords include: Electromagnetic waves, Light scattering, Nonspherical dielectric particles, Invariant imbedding. (rh)

Descriptors :   *DIELECTRICS, *ELECTROMAGNETIC SCATTERING, *LIGHT SCATTERING, *PARTICLES, *QUANTUM THEORY, COMPUTATIONS, ELECTROMAGNETIC RADIATION, EQUATIONS, NONLINEAR DIFFERENTIAL EQUATIONS, SCATTERING, TEST AND EVALUATION.

Subject Categories : Radiofrequency Wave Propagation
      Electricity and Magnetism
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE