Second-order accurate FDTD space and time grid refinement method in three space dimensions

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We present an algorithm based on the finite-difference time-domain method for local refinement of a three-dimensional computational grid in space and time. The method has second-order accuracy in space and time as verified in the numerical examples. A number of test cases with material traverse normal to the grid interfaces were used to assess the long integration time stability of the algorithm. Resulting improvements in the computation time are discussed for a photonic crystal microcavity design that exhibits a sensitive dependence of the quality factor on subwavelength geometrical features.

Original languageEnglish (US)
Pages (from-to)1237-1239
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number11
DOIs
StatePublished - Jun 1 2006

Fingerprint

finite difference time domain method
Microcavities
Finite difference time domain method
Photonic crystals
computational grids
Q factors
grids
photonics
crystals

Keywords

  • Finite-difference time-domain (FDTD)
  • Grid refinement
  • Numerical simulations
  • Photonic crystal microcavity
  • Subgridding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Second-order accurate FDTD space and time grid refinement method in three space dimensions. / Zakharian, Armis R.; Brio, Moysey; Dineen, Colm A; Moloney, Jerome V.

In: IEEE Photonics Technology Letters, Vol. 18, No. 11, 01.06.2006, p. 1237-1239.

Research output: Contribution to journalArticle

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