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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 30, Iss. 13 — Jul. 1, 2012
  • pp: 2216–2225

A Rational-Fraction Dispersion Model for Efficient Simulation of Dispersive Material in FDTD Method

Lin Han, Dong Zhou, Kang Li, Xun Li, and Wei-Ping Huang

Journal of Lightwave Technology, Vol. 30, Issue 13, pp. 2216-2225 (2012)

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A novel rational-fraction dispersion model is proposed for simulation of optical properties of arbitrary linear dispersive media over a wide wavelength range. A generally applicable method is proposed for estimating the parameters of this model. It is demonstrated that the rational-fraction dispersion model can fit the relative permittivity data of a material accurately and efficiently in a wide wavelength range. The new model is implemented in the finite-difference time-domain method and is applied as a powerful and computationally efficient tool for simulating nano-particles of dispersive materials in a wide wavelength range of light.

© 2012 IEEE

Lin Han, Dong Zhou, Kang Li, Xun Li, and Wei-Ping Huang, "A Rational-Fraction Dispersion Model for Efficient Simulation of Dispersive Material in FDTD Method," J. Lightwave Technol. 30, 2216-2225 (2012)

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