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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 10 — May. 12, 2008
  • pp: 7397–7406

Dispersive contour-path algorithm for the two-dimensional finite-difference time-domain method

Ahmad Mohammadi, Tahmineh Jalali, and Mario Agio  »View Author Affiliations

Optics Express, Vol. 16, Issue 10, pp. 7397-7406 (2008)

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We have extended the contour-path effective-permittivity (CP-EP) finite-difference time-domain (FDTD) algorithm by A. Mohammadi et al., Opt. Express 13, 10367 (2005), to linear dispersive materials using the Z-transform formalism. We test our method against staircasing and the exact solution for plasmon spectra of metal nanoparticles. We show that the dispersive contour-path (DCP) approach yields better results than staircasing, especially for the cancellation of spurious resonances.

© 2008 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(130.0130) Integrated optics : Integrated optics
(290.0290) Scattering : Scattering

ToC Category:
Numerical Methods

Original Manuscript: March 20, 2008
Revised Manuscript: April 23, 2008
Manuscript Accepted: April 27, 2008
Published: May 6, 2008

Ahmad Mohammadi, Tahmineh Jalali, and Mario Agio, "Dispersive contour-path algorithm for the two-dimensional finite-difference time-domain method," Opt. Express 16, 7397-7406 (2008)

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