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Parallel FVTD for Solving Maxwell Equations in Dielectric-Metal Composite Media

  • Yurii I. Shokin
  • Lyudmila Yu. Prokopyeva
  • Mikhail P. Fedoruk
  • Alexander S. Lebedev
  • Dmitry L. Chubarov
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 115)

Abstract

Parallel implementation of finite volume time domain method (FVTD) described in this paper is being developed for numerical simulations in the optics of nano-structured metal-dielectric composites. The problem is complicated by the dispersive behaviour of the dielectric function in metals, which is introduced into the system of equations through the time-convoluted Debye model. Another difficulty is the extreme contrast between the dielectric functions of host media and metallic elements. Thus, unstructured grids are used to fit the boundaries of elementary materials within the composite media, and also a special technique for space gradients calculation is employed. The parallel code is developed using the MPI library for inter-processor communications and was evaluated on analytical models of plane wave scattering from a metal cylinder with uniform or gradient optical properties. In this paper we show another numerical simulation that was performed for imaging with cylindrical hyperlens (imaging device that allows to overcome the diffraction limit using anisotropic metamaterials). Future study will address three-dimensional FVTD parallel code and simulations of light scattering from the core-shell systems, where parallel computing and accurate modelling of metal coat will be of great importance.

Keywords

Dielectric Function Parallel Implementation Unstructured Grid Parallel Speedup Space Gradient 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Yurii I. Shokin
    • 1
  • Lyudmila Yu. Prokopyeva
    • 1
  • Mikhail P. Fedoruk
    • 1
  • Alexander S. Lebedev
    • 1
  • Dmitry L. Chubarov
    • 1
  1. 1.Institute of Computational Technologies SB RASNovosibirskRussia

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