Hyperbolic metamaterials enable nanoscale 'fingerprinting'
Date | 12th, Feb 2019 |
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Source | Phys.org - Scientific News Websites |
DESCRIPTION
Hyperbolic metamaterials are artificially made structures that can be formed by depositing alternating thin layers of a conductor such as silver or graphene onto a substrate. One of their special abilities is supporting the propagation of a very narrow light beam, which can be generated by placing a nanoparticle on its top surface and illuminating it with a laser beam.