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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 4 — Apr. 1, 2013
  • pp: 874–883

Induced resonant electromagnetic transmission in almost-shorted dual screens

Harry F. Contopanagos  »View Author Affiliations


JOSA B, Vol. 30, Issue 4, pp. 874-883 (2013)
http://dx.doi.org/10.1364/JOSAB.30.000874


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Abstract

A metallic screen is completely opaque to electromagnetic waves at all frequencies below the corresponding metal’s plasma frequency. We present, to the best of our knowledge, a type of composite material screen, exhibiting resonant transmission properties constituting what we believe is a kind of extraordinary transmission. The screens are composed of ultrathin metallic planar arrays of scatterers having dual electromagnetic properties, in the sense of Babinet’s principle, arbitrarily close to each other, including the limit of being coplanar. Such transmission is extraordinary because the corresponding composite screen geometrically approximates a continuous (“shorted”) metal plate, expected to be opaque to electromagnetic waves. Instead, because of a resonant scattering cancellation between the dual metallic arrays, the screens are completely transparent at the corresponding frequency. We validate the theory with waveguide measurements of a fabricated dual screen exhibiting resonant transmission at millimeter-wave frequencies. We further present fully transmitting arbitrarily thin designs, with unit cells even smaller than one-tenth of the wavelength, opening up technological possibilities for integration of these screens on devices necessitating negligible thickness and minimal layout area.

© 2013 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(160.3918) Materials : Metamaterials
(160.5298) Materials : Photonic crystals
(290.5825) Scattering : Scattering theory
(310.7005) Thin films : Transparent conductive coatings

ToC Category:
Materials

History
Original Manuscript: December 20, 2012
Revised Manuscript: February 6, 2013
Manuscript Accepted: February 8, 2013
Published: March 12, 2013

Citation
Harry F. Contopanagos, "Induced resonant electromagnetic transmission in almost-shorted dual screens," J. Opt. Soc. Am. B 30, 874-883 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-4-874

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