Generation of an incident focused light pulse in FDTD

Opt Express. 2008 Nov 10;16(23):19208-20. doi: 10.1364/oe.16.019208.

Abstract

A straightforward procedure is described for accurately creating an incident focused light pulse in the 3-D finite-difference time-domain (FDTD) electromagnetic simulation of the image space of an aplanatic converging lens. In this procedure, the focused light pulse is approximated by a finite sum of plane waves, and each plane wave is introduced into the FDTD simulation grid using the total-field/scattered-field (TF/SF) approach. The accuracy of our results is demonstrated by comparison with exact theoretical formulas.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Computer Simulation
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Lenses*
  • Light
  • Lighting / instrumentation*
  • Models, Theoretical*
  • Scattering, Radiation