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Mimicking longitudinal MOKE with metasurfaces

Mimicking longitudinal MOKE with metasurfaces
Mimicking longitudinal MOKE with metasurfaces
Specular optical activity manifests itself as the rotation of light polarization when reflecting from chiral materials and diffusive scattering from chiral liquids. The effect is generally extremely weak, especially in the visible domain. Here we demonstrate strong specular optical activity at the wavelength of 660nm in achiral non-magnetic metasurfaces featuring nano-scale periodic slit patterns milled into a gold film. We reveal through experiment and simulations that the metasurfaces with reduced structural symmetry are able to induce directionally dependent polarization rotation with magnitude of ~1°, which mimics longitudinal MOKE in magnetized films.
Gorecki, Jonathan
6f68dd34-2d89-4063-baf6-8bb6cf8ccfe8
Frank, Thomas
3d1aae1b-7dd5-4ee3-8f06-c5a7f0acbe6f
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
Stenning, Gavin
1b8ebbf6-4d05-484d-90b3-7d9a76bee911
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Gorecki, Jonathan
6f68dd34-2d89-4063-baf6-8bb6cf8ccfe8
Frank, Thomas
3d1aae1b-7dd5-4ee3-8f06-c5a7f0acbe6f
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
Stenning, Gavin
1b8ebbf6-4d05-484d-90b3-7d9a76bee911
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25

Gorecki, Jonathan, Frank, Thomas, Buchnev, Oleksandr, Stenning, Gavin, Kaczmarek, Malgosia and Fedotov, Vassili (2021) Mimicking longitudinal MOKE with metasurfaces. In SPIE Optics + Photonics 2021. (In Press)

Record type: Conference or Workshop Item (Paper)

Abstract

Specular optical activity manifests itself as the rotation of light polarization when reflecting from chiral materials and diffusive scattering from chiral liquids. The effect is generally extremely weak, especially in the visible domain. Here we demonstrate strong specular optical activity at the wavelength of 660nm in achiral non-magnetic metasurfaces featuring nano-scale periodic slit patterns milled into a gold film. We reveal through experiment and simulations that the metasurfaces with reduced structural symmetry are able to induce directionally dependent polarization rotation with magnitude of ~1°, which mimics longitudinal MOKE in magnetized films.

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More information

Accepted/In Press date: 11 May 2021

Identifiers

Local EPrints ID: 449343
URI: http://eprints.soton.ac.uk/id/eprint/449343
PURE UUID: 04b41471-7be7-4d76-bc27-58bffed1dad9
ORCID for Jonathan Gorecki: ORCID iD orcid.org/0000-0001-9205-2294
ORCID for Thomas Frank: ORCID iD orcid.org/0000-0003-4677-4055

Catalogue record

Date deposited: 25 May 2021 16:34
Last modified: 26 May 2021 01:59

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Contributors

Author: Thomas Frank ORCID iD
Author: Oleksandr Buchnev
Author: Gavin Stenning
Author: Vassili Fedotov

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