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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 31, Iss. 3 — Mar. 1, 2014
  • pp: 510–517

Dyadic Green’s function of an eccentrically stratified sphere

Angela P. Moneda and Dimitrios P. Chrissoulidis  »View Author Affiliations


JOSA A, Vol. 31, Issue 3, pp. 510-517 (2014)
http://dx.doi.org/10.1364/JOSAA.31.000510


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Abstract

The electric dyadic Green’s function (dGf) of an eccentrically stratified sphere is built by use of the superposition principle, dyadic algebra, and the addition theorem of vector spherical harmonics. The end result of the analytical formulation is a set of linear equations for the unknown vector wave amplitudes of the dGf. The unknowns are calculated by truncation of the infinite sums and matrix inversion. The theory is exact, as no simplifying assumptions are required in any one of the analytical steps leading to the dGf, and it is general in the sense that any number, position, size, and electrical properties can be considered for the layers of the sphere. The point source can be placed outside of or in any lossless part of the sphere. Energy conservation, reciprocity, and other checks verify that the dGf is correct. A numerical application is made to a stratified sphere made of gold and glass, which operates as a lens.

© 2014 Optical Society of America

OCIS Codes
(290.5850) Scattering : Scattering, particles
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(290.5825) Scattering : Scattering theory

ToC Category:
Scattering

History
Original Manuscript: October 31, 2013
Manuscript Accepted: December 19, 2013
Published: February 13, 2014

Citation
Angela P. Moneda and Dimitrios P. Chrissoulidis, "Dyadic Green’s function of an eccentrically stratified sphere," J. Opt. Soc. Am. A 31, 510-517 (2014)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-31-3-510

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