Journal
MATERIALS HORIZONS
Volume 4, Issue 2, Pages 290-296Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6mh00535g
Keywords
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Funding
- 973 Program of China [2013CBA01700]
- National Natural Science Funds [61138002, 61575202]
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miniature evanescent Bessel beam generator is realized by utilizing the combination of metasurfaces based on a concentric grating and hyperbolic metamaterials composed of alternate metal/dielectric multilayers. After introducing the plasmonic cavity lens, the feature size could be compressed to 62 nm (0.17k0) at the wavelength of 365 nm with a working distance as large as 100 nm. The theoretical models are verified by a set of experiments, providing a promising way to control light at the nanoscale.
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