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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 18, Iss. 11 — Nov. 1, 2001
  • pp: 2895–2900

Vector diffraction analysis by discrete-dipole approximation

Kei Shimura and Tom D. Milster  »View Author Affiliations


JOSA A, Vol. 18, Issue 11, pp. 2895-2900 (2001)
http://dx.doi.org/10.1364/JOSAA.18.002895


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Abstract

The discrete-dipole approximation is applied to vector diffraction analysis in a system with large-numerical-aperture (NA) optics and subwavelength targets. Distributions of light diffracted by subwavelength dielectric targets are calculated in a solid angle that corresponds to a NA of 0.9, and their dependence on incident polarization, target shape, and target size is studied. Electric field distributions inside the target are also shown. Basic features of the vector diffraction are clearly demonstrated. This technique facilitates understanding of the vectorial effects in systems that are expected to be applied in the future to optical data storage.

© 2001 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(260.1960) Physical optics : Diffraction theory
(290.0290) Scattering : Scattering

History
Original Manuscript: December 29, 2000
Revised Manuscript: April 3, 2001
Manuscript Accepted: April 4, 2001
Published: November 1, 2001

Citation
Kei Shimura and Tom D. Milster, "Vector diffraction analysis by discrete-dipole approximation," J. Opt. Soc. Am. A 18, 2895-2900 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-11-2895

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