Super-resolution scanning imaging based on metal-dielectric composite metamaterials.
Appl Opt
; 61(1): 196-201, 2022 Jan 01.
Article
em En
| MEDLINE
| ID: mdl-35200819
ABSTRACT
We propose super-resolution scanning imaging by using a metamaterial composed of a silver-silicon dioxide composite covered by a layer of chromium containing one slit and a silicon dioxide substrate. By simulating a distribution of energy flow in the metamaterial for an H-polarized wave, we find that the output beam exhibits focusing accompanied with good directional radiation, which is able to be designed as a super-resolution scanning probe. We also demonstrate numerically super-resolution imaging by scanning our designed metamaterial over a sub-wavelength object.
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MEDLINE
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En
Ano de publicação:
2022
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Article