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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 6 — Mar. 24, 2014
  • pp: 6511–6518

A systematic approach to enhance off-axis directional electromagnetic wave by two-dimensional structure design

Dongyeal Lim, Dongheok Shin, Hyundo Shin, Kyoungsik Kim, and Jeonghoon Yoo  »View Author Affiliations

Optics Express, Vol. 22, Issue 6, pp. 6511-6518 (2014)

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In this study, we propose a two-dimensional (2D) dielectric structure tailored by a systematic design approach on the exit side of a metallic aperture to enhance the off-axis electromagnetic (EM) wave. We adopted a phase field method based topology optimization scheme and designed an arbitrary 2D dielectric structure in order to steer outward beaming through an aperture to a specific direction. Beyond previous one-dimensional structure, we proposed an arbitrary 2D dielectric structure through the introduced design process defining not only x- but also y-directional dielectric structural boundaries simultaneously and experimentally confirmed enhanced EM wave transmission to a desired direction.

© 2014 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Diffraction and Gratings

Original Manuscript: January 30, 2014
Revised Manuscript: March 3, 2014
Manuscript Accepted: March 3, 2014
Published: March 12, 2014

Dongyeal Lim, Dongheok Shin, Hyundo Shin, Kyoungsik Kim, and Jeonghoon Yoo, "A systematic approach to enhance off-axis directional electromagnetic wave by two-dimensional structure design," Opt. Express 22, 6511-6518 (2014)

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