Engineering high directional sensitivity in non-diffracting metasurfaces
Engineering high directional sensitivity in non-diffracting metasurfaces
Compact Optical components sensitive to incident wave-vector direction are essential in image-processing, wavefront-manipulation, and metrology such as LIDAR. Here we demonstrate a new class of metasurfaces which exhibit optical spectral features strongly correlated with incident illumination angle. The spectra of such metasurfaces feature sharp transmission dips centred around 800 nm when illuminated at oblique incidence, where the strength of the dip increases as incident angle increases remaining tightly confined within a 100 nm band. The metasurfaces are capable of accepting large incident angles (>30°) without the appearance of higher-order diffraction modes, while displaying dramatic transmission decreases (~80% reduction).
Gorecki, Jonathan
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Buchnev, Oleksandr
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Bailey, Christopher G
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Cookson, Tamsin
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Kaczmarek, Malgosia
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Lagoudakis, Pavlos
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Fedotov, Vassili
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Gorecki, Jonathan
6f68dd34-2d89-4063-baf6-8bb6cf8ccfe8
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
Bailey, Christopher G
c537fe2c-47b1-45cc-b449-92a7febdbd8d
Cookson, Tamsin
70c15876-7c6d-4de5-a0ce-cc4beb12a324
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Gorecki, Jonathan, Buchnev, Oleksandr, Bailey, Christopher G, Cookson, Tamsin, Kaczmarek, Malgosia, Lagoudakis, Pavlos and Fedotov, Vassili
(2021)
Engineering high directional sensitivity in non-diffracting metasurfaces.
In SPIE Optics + Photonics 2021.
(In Press)
Record type:
Conference or Workshop Item
(Paper)
Abstract
Compact Optical components sensitive to incident wave-vector direction are essential in image-processing, wavefront-manipulation, and metrology such as LIDAR. Here we demonstrate a new class of metasurfaces which exhibit optical spectral features strongly correlated with incident illumination angle. The spectra of such metasurfaces feature sharp transmission dips centred around 800 nm when illuminated at oblique incidence, where the strength of the dip increases as incident angle increases remaining tightly confined within a 100 nm band. The metasurfaces are capable of accepting large incident angles (>30°) without the appearance of higher-order diffraction modes, while displaying dramatic transmission decreases (~80% reduction).
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Accepted/In Press date: 11 May 2021
Identifiers
Local EPrints ID: 449342
URI: http://eprints.soton.ac.uk/id/eprint/449342
PURE UUID: b35fd99a-065f-4e39-a9eb-1a8f0a436c77
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Date deposited: 25 May 2021 16:34
Last modified: 19 Dec 2023 03:06
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Contributors
Author:
Jonathan Gorecki
Author:
Oleksandr Buchnev
Author:
Christopher G Bailey
Author:
Tamsin Cookson
Author:
Pavlos Lagoudakis
Author:
Vassili Fedotov
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