Massively Sub-wavelength Guiding of Electromagnetic Waves

作者：Hooper I R^*; Tremain B; Dockrey J A; Hibbins A P

来源：Scientific Reports, 2014, 4(1): 7495.

DOI：10.1038/srep07495

Recently a new form of ultra-thin flexible waveguide consisting of a conducting comb-like structure with a thickness of the order of 1/600th 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 (401) longer than any characteristic dimension of the guide, enabling super-sub-wavelength guiding and localisation of electromagnetic energy.

• 出版日期2014-12-16