Electromagnetic field for a beam incident on two adjacent spherical particles

J. P. Barton, W. Ma, S. A. Schaub, D. R. Alexander

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Through an application of our previously derived single spherical particle-arbitrary beam interaction theory, an iterative procedure has been developed for the determination of the electromagnetic field for a beam incident on two adjacent spherical particles. The two particles can differ in size and composition and can have any positioning relative to each other and relative to the focal point and propagation direction of the incident beam. Example calculations of internal and near-field normalized source function (~|E|2) distributions are presented. Also presented are calculations demonstrating the effect of the relative positioning of the second adjacent particle on far-field scattering patterns.

Original languageEnglish (US)
Pages (from-to)4706-4715
Number of pages10
JournalApplied optics
Issue number33
StatePublished - Nov 20 1991


  • Adjacent spherical particles
  • Electromagnetic field
  • Incident beam
  • Light scattering
  • Particle sizing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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