Massively sub-wavelength guiding of electromagnetic waves
Hooper, Ian R.; Tremain, B.; Dockrey, J.A.; et al.Hibbins, Alastair P.
Date: 16 December 2014
Article
Journal
Scientific Reports
Publisher
Nature Publishing Group
Publisher DOI
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Abstract
Recently a new form of ultra-thin flexible waveguide consisting of a conducting comb-like structure with a thickness of the order of 1/600(th) of the operating wavelength was presented. However, whilst the thickness of the guide was massively sub-wavelength, the remaining dimensions (the height and period of the comb) were much longer. ...
Recently a new form of ultra-thin flexible waveguide consisting of a conducting comb-like structure with a thickness of the order of 1/600(th) of the operating wavelength was presented. However, whilst the thickness of the guide was massively sub-wavelength, the remaining dimensions (the height and period of the comb) were much longer. In this paper we propose, and experimentally verify, that a modified guiding geometry consisting of a chain of ultra-thin conducting spirals allows guiding of electromagnetic waves with wavelengths that are many times (40+) longer than any characteristic dimension of the guide, enabling super-sub-wavelength guiding and localisation of electromagnetic energy.
Physics and Astronomy
Faculty of Environment, Science and Economy
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