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Far-field superoscillatory metamaterial superlens

Far-field superoscillatory metamaterial superlens
Far-field superoscillatory metamaterial superlens
We demonstrate a radically new type of metamaterial superlens: a planar array of discrete sub-wavelength metamolecules with individual scattering characteristics tailored to vary spatially to create sub-diffraction superoscillatory focus of – in principle – arbitrary shape and size. Metamaterial free-space lenses with previously unattainable effective numerical apertures – as high as 1.52 – and foci as small as 0.33λ in size are demonstrated. Super-resolution imaging with such lenses is experimentally verified breaking the conventional diffraction limit of resolution and confirming resolution equal to the size of the foci. Our approach will enable far-field label-free super-resolution non-algorithmic microscopies at harmless levels of intensity, including imaging inside cells, nanostructures and silicon chips, without impregnating them with fluorescent materials.
Metamaterials, nanoantennas, photonics, plasmonics, refraction, optical nanoscopy, super-resolution techniques
2331-7019
1-10
Yuan, Guanghui
d7af6f06-7da9-41ef-b7f9-cfe09e55fcaa
Rogers, Katrine
d3a41aac-d26c-410a-8d84-abd04b58f0a9
Rogers, Edward T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Yuan, Guanghui
d7af6f06-7da9-41ef-b7f9-cfe09e55fcaa
Rogers, Katrine
d3a41aac-d26c-410a-8d84-abd04b58f0a9
Rogers, Edward T.F.
b92cc8ab-0d91-4b2e-b5c7-8a2f490a36a2
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Yuan, Guanghui, Rogers, Katrine, Rogers, Edward T.F. and Zheludev, Nikolai (2019) Far-field superoscillatory metamaterial superlens. Physical Review Applied, 11 (6), 1-10, [064016]. (doi:10.1103/PhysRevApplied.11.064016).

Record type: Article

Abstract

We demonstrate a radically new type of metamaterial superlens: a planar array of discrete sub-wavelength metamolecules with individual scattering characteristics tailored to vary spatially to create sub-diffraction superoscillatory focus of – in principle – arbitrary shape and size. Metamaterial free-space lenses with previously unattainable effective numerical apertures – as high as 1.52 – and foci as small as 0.33λ in size are demonstrated. Super-resolution imaging with such lenses is experimentally verified breaking the conventional diffraction limit of resolution and confirming resolution equal to the size of the foci. Our approach will enable far-field label-free super-resolution non-algorithmic microscopies at harmless levels of intensity, including imaging inside cells, nanostructures and silicon chips, without impregnating them with fluorescent materials.

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XY10327N - Accepted Manuscript
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More information

Accepted/In Press date: 12 May 2019
e-pub ahead of print date: 7 June 2019
Published date: June 2019
Keywords: Metamaterials, nanoantennas, photonics, plasmonics, refraction, optical nanoscopy, super-resolution techniques

Identifiers

Local EPrints ID: 431772
URI: http://eprints.soton.ac.uk/id/eprint/431772
ISSN: 2331-7019
PURE UUID: 315d35e7-879f-4e28-9279-03f8f9d737bd
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 14 Jun 2019 16:30
Last modified: 09 Jan 2022 02:43

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Contributors

Author: Guanghui Yuan
Author: Katrine Rogers
Author: Edward T.F. Rogers

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