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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 2, Iss. 5 — Mar. 2, 1998
  • pp: 191–197

Vector diffraction from subwavelength optical disk structures: Two-dimensional near-field profiles

Wei-Chih Liu and Marek W. Kowarz  »View Author Affiliations


Optics Express, Vol. 2, Issue 5, pp. 191-197 (1998)
http://dx.doi.org/10.1364/OE.2.000191


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Abstract

An efficient finite-difference frequency-domain method is developed for calculating electromagnetic fields in the neighborhood of subwavelength dielectric and metallic structures. The method is used to investigate two-dimensional near-field and far-field patterns of a focused beam diffracted from an optical disk, specifically from a DVD (Digital Versatile Disk). It is shown that the polarization of illumination has a significant impact on diffraction patterns as expected and that scalar theory does not provide an accurate analysis of diffraction from a DVD.

© Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(210.0210) Optical data storage : Optical data storage
(210.4590) Optical data storage : Optical disks

ToC Category:
Research Papers

History
Original Manuscript: December 12, 1997
Revised Manuscript: December 10, 1997
Published: March 2, 1998

Citation
Wei-Chih Liu and Marek Kowarz, "Vector diffraction from subwavelength optical disk structures: Two-dimensional near-field profiles," Opt. Express 2, 191-197 (1998)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-2-5-191


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References

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