Controlling intensity and phase of terahertz radiation with an optically thin liquid crystal-loaded metamaterial
Controlling intensity and phase of terahertz radiation with an optically thin liquid crystal-loaded metamaterial
We experimentally demonstrate intensity and phase modulation of terahertz radiation using an actively controlled large-area planar metamaterial (metafilm) hybridized with a 12 µm thick layer of a liquid crystal. Active control was introduced through in-plane electrical switching of the liquid crystal, which enabled to achieve a reversible single-pass absolute transmission change of 20% and a phase change of 40° at only 20V.
1904-1907
Buchnev, O.
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Wallauer, J.
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Walther, M.
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Kaczmarek, M.
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Zheludev, N.I.
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Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
October 2013
Buchnev, O.
60cdb0d2-3388-47be-a066-61b3b396f69d
Wallauer, J.
ca1290d9-09cf-4ad4-bc83-6e8af5758737
Walther, M.
79136385-d7a0-4d2e-923e-45cb852b7938
Kaczmarek, M.
408ec59b-8dba-41c1-89d0-af846d1bf327
Zheludev, N.I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Fedotov, V.A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Buchnev, O., Wallauer, J., Walther, M., Kaczmarek, M., Zheludev, N.I. and Fedotov, V.A.
(2013)
Controlling intensity and phase of terahertz radiation with an optically thin liquid crystal-loaded metamaterial.
Applied Physics Letters, 103 (14), .
(doi:10.1063/1.4823822).
Abstract
We experimentally demonstrate intensity and phase modulation of terahertz radiation using an actively controlled large-area planar metamaterial (metafilm) hybridized with a 12 µm thick layer of a liquid crystal. Active control was introduced through in-plane electrical switching of the liquid crystal, which enabled to achieve a reversible single-pass absolute transmission change of 20% and a phase change of 40° at only 20V.
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Published date: October 2013
Organisations:
Optoelectronics Research Centre, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 358626
URI: http://eprints.soton.ac.uk/id/eprint/358626
ISSN: 0003-6951
PURE UUID: 0e7468ef-24e4-44e8-bdeb-5b52cdc2326f
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Date deposited: 11 Oct 2013 13:55
Last modified: 15 Mar 2024 02:44
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Contributors
Author:
O. Buchnev
Author:
J. Wallauer
Author:
M. Walther
Author:
N.I. Zheludev
Author:
V.A. Fedotov
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