Single realization stochastic fdtd for weak scattering waves in biological random media

Tengmeng Tan*, Allen Taflove, Vadim Backman

*Corresponding author for this work

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

This paper introduces an iterative scheme to overcome the unresolved issues presented in S-FDTD (stochastic finite-difference time-domain) for obtaining ensemble average field values recently reported by Smith and Furse in an attempt to replace the brute force multiple-realization also known as Monte-Carlo approach with a single-realization scheme. Our formulation is particularly useful for studying light interactions with biological cells and tissues having sub-wavelength scale features. Numerical results demonstrate that such a small scale variation can be effectively modeled with a random medium problem which when simulated with the proposed S-FDTD indeed produces a very accurate result.

Original languageEnglish (US)
Article number6310034
Pages (from-to)818-828
Number of pages11
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number2
DOIs
StatePublished - 2013

Keywords

  • Biological cells and tissues
  • FDTD
  • PDE
  • S-FDTD
  • S-PDE
  • iterative
  • random media
  • statistical fluctuations
  • sub-wavelength

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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