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New materials for metamaterials: plasmonic and ENZ chalcogenides

New materials for metamaterials: plasmonic and ENZ chalcogenides
New materials for metamaterials: plasmonic and ENZ chalcogenides
Metamaterial nano-structuring can provide an astonishing level of control over the optical properties of thin metal films, and concepts have been extended in recent years to dielectric (typically transparent, high-index) material platforms. Interesting opportunities are also offered by materials presenting an electromagnetic response that lies between those of metals and dielectrics: inter- and intra-band transitions in semiconductors can lead to strong dispersion of optical properties with spectral domains of low and high loss, negative and positive real parts of relative permittivity, plasmonic, ‘epsilon-near-zero’ (ENZ) and topological insulator behaviours. The chalcogenide alloys are a good example of such highly dispersive materials, variously offering optical properties of the above types at near-UV to near-IR wavelengths, which can moreover be ‘engineered’ by controlling alloy composition and phase. We report here on the synthesis, characterization and application of plasmonic chalcogenides, including compositions that can be switched between plasmonic and dielectric states, and on the counterintuitive properties of chalcogenide ENZ metasurfaces.
Piccinotti, Davide
e96e70c1-ff9b-4961-a42c-c83497e603b3
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Yao, Jin
83dff1cd-6f7c-4b47-968e-18c64ffcb24b
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Hayden, Brian
aea74f68-2264-4487-9d84-5b12ddbbb331
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
Piccinotti, Davide
e96e70c1-ff9b-4961-a42c-c83497e603b3
Gholipour, Behrad
c17bd62d-9df6-40e6-bc42-65272d97e559
Yao, Jin
83dff1cd-6f7c-4b47-968e-18c64ffcb24b
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Hayden, Brian
aea74f68-2264-4487-9d84-5b12ddbbb331
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6

Piccinotti, Davide, Gholipour, Behrad, Yao, Jin, MacDonald, Kevin F., Hayden, Brian and Zheludev, Nikolai (2018) New materials for metamaterials: plasmonic and ENZ chalcogenides. SPIE Photonics Europe 2018, Strasbourg, France. 22 - 26 Apr 2018.

Record type: Conference or Workshop Item (Other)

Abstract

Metamaterial nano-structuring can provide an astonishing level of control over the optical properties of thin metal films, and concepts have been extended in recent years to dielectric (typically transparent, high-index) material platforms. Interesting opportunities are also offered by materials presenting an electromagnetic response that lies between those of metals and dielectrics: inter- and intra-band transitions in semiconductors can lead to strong dispersion of optical properties with spectral domains of low and high loss, negative and positive real parts of relative permittivity, plasmonic, ‘epsilon-near-zero’ (ENZ) and topological insulator behaviours. The chalcogenide alloys are a good example of such highly dispersive materials, variously offering optical properties of the above types at near-UV to near-IR wavelengths, which can moreover be ‘engineered’ by controlling alloy composition and phase. We report here on the synthesis, characterization and application of plasmonic chalcogenides, including compositions that can be switched between plasmonic and dielectric states, and on the counterintuitive properties of chalcogenide ENZ metasurfaces.

Full text not available from this repository.

More information

Published date: 22 April 2018
Additional Information: Invited Talk
Venue - Dates: SPIE Photonics Europe 2018, Strasbourg, France, 2018-04-22 - 2018-04-26

Identifiers

Local EPrints ID: 416709
URI: https://eprints.soton.ac.uk/id/eprint/416709
PURE UUID: 71b2ae74-8d52-4894-8f11-8ba3f5a82304
ORCID for Kevin F. MacDonald: ORCID iD orcid.org/0000-0002-3877-2976
ORCID for Brian Hayden: ORCID iD orcid.org/0000-0002-7762-1812
ORCID for Nikolai Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 05 Jan 2018 17:30
Last modified: 06 Jun 2018 13:16

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