Analysis of light propagation in neonatal head model by finite difference method

Yuichi Fukui, Tsuyoshi Yamamoto, Eiji Okada

Research output: Contribution to journalConference articlepeer-review


The light propagation in a simple layered ellipse model and more complex neonatal head model are calculated by the finite-difference method. The finite-difference method has advantage of simple algorithm and fast calculation time however has been successful under restricted condition for a heterogeneous medium. The light propagation in the both models is predicted by Monte Carlo simulation to validate the results of the finite-difference method. The detected intensity and partial optical path length calculated by the finite-difference method agree with those by Monte Carlo simulation. The boundary of the grey and white matter in the neonatal head model is more complex than the simple ellipse model. However, the tendency of spatial sensitivity profiles in the neonatal head model is scarcely affected by the effect of heterogeneity of the brain tissue.

Original languageEnglish
Pages (from-to)184-191
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2001
EventPhoton Migration, Optical Coherence Tomography, and Microscopy - Munich, Germany
Duration: 2001 Jun 182001 Jun 21


  • Finite-difference method
  • Light propagation
  • Neonatal head model
  • Spatial sensitivity profiles

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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