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Proceedings Paper

Quasioptical devices based on extraordinary transmission at THz
Author(s): Miguel Beruete
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Paper Abstract

In this work I will present our latest advances in components developed from extraordinary transmission concepts operating at terahertz (THz) frequencies. First, a structure exhibiting two different extraordinary transmission resonances depending on the polarization of the incident wave will be shown. The peaks of transmission appear at approximately 2 and 2.5 THz for vertical and horizontal polarization, respectively, with a transmittance above 60% in both cases. Later on, a meandering line structure able to tune the extraordinary transmission resonance will be discussed. The operation frequency in this case is between 9 and 17 THz. A self-complementary polarizer will be then presented, with a high polarization purity. The fundamentals of this device based on the Babinet’s principle will be discussed in depth. Finally, all these structures will be combined together to produce a dual-band Quarter Wave Plate able to convert a linear polarization at the input in a circular polarization at the output at two different bands, 1 and 2.2. THz. Some final words regarding the potential of extraordinary transmission for sensing applications will close the contribution.

Paper Details

Date Published: 29 April 2016
PDF: 6 pages
Proc. SPIE 9856, Terahertz Physics, Devices, and Systems X: Advanced Applications in Industry and Defense, 98560R (29 April 2016); doi: 10.1117/12.2228237
Show Author Affiliations
Miguel Beruete, Univ. Pública de Navarra (Spain)
Institute of Smart Cities (Spain)

Published in SPIE Proceedings Vol. 9856:
Terahertz Physics, Devices, and Systems X: Advanced Applications in Industry and Defense
Mehdi F. Anwar; Thomas W. Crowe; Tariq Manzur, Editor(s)

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