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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 4 — Feb. 24, 2003
  • pp: 371–380

Creation and annihilation of phase singularities near a sub-wavelength slit

Hugo F. Schouten, Taco D. Visser, Greg Gbur, Daan Lenstra, and Hans Blok  »View Author Affiliations

Optics Express, Vol. 11, Issue 4, pp. 371-380 (2003)

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The anomalously-high transmission of light through sub-wavelength apertures is a phenomenon which has been observed in numerous experiments, but whose theoretical explanation is incomplete. In this article we present a numerical analysis of the power flow (characterized by the Poynting vector)of the electromagnetic field near a sub-wavelength sized slit in a thin metal plate, and demonstrate that the enhanced transmission is accompanied by the annihilation of phase singularities in the power flow near the slit.

© 2003 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1960) Diffraction and gratings : Diffraction theory
(260.2110) Physical optics : Electromagnetic optics

ToC Category:
Research Papers

Original Manuscript: January 27, 2003
Revised Manuscript: February 17, 2003
Published: February 24, 2003

Hugo Schouten, Taco Visser, Greg Gbur, Daan Lenstra, and Hans Blok, "Creation and annihilation of phase singularities near a sub-wavelength slit," Opt. Express 11, 371-380 (2003)

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