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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 10 — May. 15, 2009
  • pp: 1600–1602

Polarization-current-based, finite-difference time-domain, near-to-far-field transformation

Yong Zeng and Jerome V. Moloney  »View Author Affiliations

Optics Letters, Vol. 34, Issue 10, pp. 1600-1602 (2009)

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A near-to-far-field transformation algorithm for three-dimensional finite-difference time-domain is presented in this Letter. This approach is based directly on the polarization current of the scatterer, not the scattered near fields. It therefore eliminates the numerical errors originating from the spatial offset of the E and H fields, inherent in the standard near-to-far-field transformation. The proposed method is validated via direct comparisons with the analytical Lorentz–Mie solutions of plane waves scattered by large dielectric and metallic spheres with strong forward-scattering lobes.

© 2009 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(290.5850) Scattering : Scattering, particles
(290.5825) Scattering : Scattering theory

ToC Category:

Original Manuscript: March 3, 2009
Revised Manuscript: March 19, 2009
Manuscript Accepted: April 9, 2009
Published: May 15, 2009

Yong Zeng and Jerome V. Moloney, "Polarization-current-based, finite-difference time-domain, near-to-far-field transformation," Opt. Lett. 34, 1600-1602 (2009)

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