Hedgehog subwavelength hole arrays: Control over the THz enhanced transmission

Miguel Navarro-Cia*, Pablo Rodriguez-Ulibarri, M. Beruete

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
159 Downloads (Pure)

Abstract

By backing or sandwiching a holey metal layer with or between isotropic dielectric slabs, additional peaks of transmission within the long-wavelength regime arise as a result of the induced transverse magnetic (TM) or transverse electric (TE) grounded dielectric modes. A similar control of the complex surface wave modes, and thus of the extraordinary transmission (ET) peaks, is demonstrated here via anisotropic slabs in the form of a fakir's bed of nails. However, it is shown that those ET peaks formed from TE modes are suppressed because of the inherent dispersion characteristics of the free-standing grounded pins. This allows the red-shifting of the ET for the polarization parallel to the larger in-plane period of the hole array, but unlike the dielectric isotropic slab configuration, the orthogonal polarization remains inhibited.

Original languageEnglish
Article number013003
JournalNew Journal of Physics
Volume15
DOIs
Publication statusPublished - 3 Jan 2013

ASJC Scopus subject areas

  • General Physics and Astronomy

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