Multipole expansion for efficient calculation of focal distributions

Colin J. Sheppard*, Peter Torok

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

There is continued interest in calculation of the electromagnetic field distribution in the focal region of an optical system of high numerical aperture. Important applications include microscopy and optical information storage. Unfortunately direct evaluation of the diffraction integrals is extremely time-consuming. We have developed a new method in which the illumination is expanded in a series of multipole terms, each of which gives rise to a focal field which is an analytic function in three-dimensional space. The electric energy density in the focal region has been calculated for various lens and mirror systems.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsDaniel Malacara-Hernandez, Sofia E. Acosta, Ramon Rodriguez-Vera, Zacarias Malacara, Arquimedes A. Morales
Pages630-633
Number of pages4
Publication statusPublished - 1996
Externally publishedYes
EventSecond Iberoamerican Meeting on Optics - Guanajuato, Mex
Duration: Sept 18 1995Sept 22 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2730
ISSN (Print)0277-786X

Conference

ConferenceSecond Iberoamerican Meeting on Optics
CityGuanajuato, Mex
Period9/18/959/22/95

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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