Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 10, 2015
|
|
---|---|---|
Article Number | 15006 | |
Number of page(s) | 7 | |
DOI | https://doi.org/10.2971/jeos.2015.15006 | |
Published online | 13 February 2015 |
Regular paper
Hollow waveguides as polarization converting elements: a theoretical study
Chair of Micro- and Nanophotonics, FernUniversitä in Hagen, Germany
* stefan.helfert@fernuni-hagen.de
Received:
17
November
2014
Revised:
13
January
2015
Subwavelength apertures in a metallic film act as hollow waveguides. By using a non-quadratic cross-section, an anisotropic transmission behaviour results for the two polarization states. Thus, an array of metallic subwavelength apertures may be used as polarization converter, e.g., as a half-wave plate. By varying orientation and shape of the cross-sections locally, one can design polarization shifting elements for complex wave fields. Here, we present a theoretical consideration on the physical properties and compare with dielectric form birefringence.
Key words: Birefringent materials / polarization conversion / hollow waveguides
© The Author(s) 2015. All rights reserved.
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