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Sub-wavelength quarter-wave plate based on plasmonic patch antennas
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Optics and Photonics, OFO.
2013 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 103, no 26, 261108- p.Article in journal (Refereed) Published
Abstract [en]

A quarter-wave plate using plasmonic patch antennas has been investigated. The nanostructures can convert linear polarized light into circular polarized light in the visible range (633 nm). By further exploiting the dimer patch antenna structure composed of different metals, directional emission (with a directivity of 4.8) of circular polarized light (with a conversion efficiency of 27.8%) in an oblique direction with respect to the incident light is enabled. Compared with previous designs, the proposed structures are ultra-thin, and are more suitable for integration applications.

Place, publisher, year, edition, pages
2013. Vol. 103, no 26, 261108- p.
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Identifiers
URN: urn:nbn:se:kth:diva-140924DOI: 10.1063/1.4858255ISI: 000329977400008Scopus ID: 2-s2.0-84891593223OAI: oai:DiVA.org:kth-140924DiVA: diva2:693454
Funder
Swedish Foundation for Strategic Research Swedish Research Council
Note

QC 20140204

Available from: 2014-02-04 Created: 2014-02-04 Last updated: 2017-12-06Bibliographically approved

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