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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 24 — Nov. 27, 2006
  • pp: 11870–11884

Time-domain analysis of periodic anisotropic media at oblique incidence: an efficient FDTD implementation

Chulwoo Oh and Michael J. Escuti  »View Author Affiliations

Optics Express, Vol. 14, Issue 24, pp. 11870-11884 (2006)

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We describe an efficient implementation of the finite-difference time-domain (FDTD) method as applied to lightwave propagation through periodic media with arbitrary anisotropy (birefringence). A permittivity tensor with non-diagonal elements is successfully integrated here with periodic boundary conditions, bounded computation space, and the split-field update technique. This enables modeling of periodic structures using only one period even with obliquely incident light in combination with both monochromatic (sinusoidal) and wideband (time-domain pulse) sources. Comparisons with results from other techniques in four validation cases are presented and excellent agreement is obtained. Our implementation is freely available on the Web.

© 2006 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(160.1190) Materials : Anisotropic optical materials
(230.1950) Optical devices : Diffraction gratings
(260.5430) Physical optics : Polarization

ToC Category:
Physical Optics

Original Manuscript: August 28, 2006
Revised Manuscript: October 19, 2006
Manuscript Accepted: November 1, 2006
Published: November 27, 2006

Chulwoo Oh and Michael J. Escuti, "Time-domain analysis of periodic anisotropic media at oblique incidence: an efficient FDTD implementation," Opt. Express 14, 11870-11884 (2006)

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