Generation of an incident focused light pulse in FDTD

Ilker R. Çapoglu, Allen Taftove, Vadim Backman

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)19208-19220
Number of pages13
JournalOptics Express
Issue number23
StatePublished - Nov 10 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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