Design, fabrication, and demonstration of a dielectric vortex waveguide in the sub-terahertz region

A sub-terahertz vortex dielectric waveguide was designed and fabricated in the cyclic olefin copolymer (TOPAS) compound. The annular index profile was engineered using a holey cladding to support operation from approximately 200-300 GHz. The vortex waveguide was tested at 280 GHz using an OAM-endowe...

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Bibliographic Details
Published inApplied optics. Optical technology and biomedical optics Vol. 56; no. 25; p. 7123
Main Authors Aflakian, Nafiseh, LaFave, Tim P, Kenneth, K O, Ashrafi, Solyman, MacFarlane, Duncan L
Format Journal Article
LanguageEnglish
Published United States 01.09.2017
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Summary:A sub-terahertz vortex dielectric waveguide was designed and fabricated in the cyclic olefin copolymer (TOPAS) compound. The annular index profile was engineered using a holey cladding to support operation from approximately 200-300 GHz. The vortex waveguide was tested at 280 GHz using an OAM-endowed Laguerre-Gaussian mode generated by a stepped spiral phase plate.
ISSN:2155-3165
DOI:10.1364/AO.56.007123