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Optics Letters

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  • Vol. 36, Iss. 16 — Aug. 15, 2011
  • pp: 3245–3247

High-order FDTD methods for transverse electromagnetic systems in dispersive inhomogeneous media

Shan Zhao  »View Author Affiliations


Optics Letters, Vol. 36, Issue 16, pp. 3245-3247 (2011)
http://dx.doi.org/10.1364/OL.36.003245


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Abstract

This Letter introduces a novel finite-difference time-domain (FDTD) formulation for solving transverse electromagnetic systems in dispersive media. Based on the auxiliary differential equation approach, the Debye dispersion model is coupled with Maxwell’s equations to derive a supplementary ordinary differential equation for describing the regularity changes in electromagnetic fields at the dispersive interface. The resulting time-dependent jump conditions are rigorously enforced in the FDTD discretization by means of the matched interface and boundary scheme. High-order convergences are numerically achieved for the first time in the literature in the FDTD simulations of dispersive inhomogeneous media.

© 2011 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(260.2030) Physical optics : Dispersion
(160.2710) Materials : Inhomogeneous optical media

ToC Category:
Materials

History
Original Manuscript: June 8, 2011
Manuscript Accepted: July 18, 2011
Published: August 15, 2011

Citation
Shan Zhao, "High-order FDTD methods for transverse electromagnetic systems in dispersive inhomogeneous media," Opt. Lett. 36, 3245-3247 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-16-3245


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