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Optica Publishing Group
  • Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing
  • OSA Technical Digest Series (Optica Publishing Group, 2004),
  • paper FWB2
  • https://doi.org/10.1364/FIO.2004.FWB2

Sharply enhanced terahertz transmission through a periodic array of subwavelength apertures

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Abstract

We demonstrate resonantly enhanced transmission of terahertz radiation through metal foils perforated with periodic arrays of sub-wavelength apertures. The quality factor of the transmission resonances is more than an order of magnitude larger than observed at optical frequencies. We discuss the effect of aperture shape on the transmission spectrum.

© 2004 Optical Society of America

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