Ultra-thin metamaterial-enhanced liquid-crystal terahertz spatial phase modulator
Ultra-thin metamaterial-enhanced liquid-crystal terahertz spatial phase modulator
We demonstrate experimentally a very thin THz spatial phase modulator based on planar metamaterials hybridysed with a liquid-crystal (LC) cell. It consists of two layers of THz planar metamaterials separated by a 12 µm thick LC layer. Besides enhancing optical anisotropy of the LC layer, the metamaterials also act as spatially addressable electrodes, which transform the resulting structure into an array of sub-wavelength pixels with independently controlled electromagnetic phase. Our approach brings about a new family of LC-enabled but optically thin THz devices for efficient control and manipulation of THz wavefronts
Buchnev, Oleksandr
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Podoliak, Nina
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Kaltenecker, Korbian
920dc0c5-00bf-408d-9237-f182a17cf2f7
Walther, Markus
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Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
August 2019
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Kaltenecker, Korbian
920dc0c5-00bf-408d-9237-f182a17cf2f7
Walther, Markus
7fa1a6aa-41de-42cf-a06c-f4a2c7c264c9
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Fedotov, Vassili
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Buchnev, Oleksandr, Podoliak, Nina, Kaltenecker, Korbian, Walther, Markus, Kaczmarek, Malgosia and Fedotov, Vassili
(2019)
Ultra-thin metamaterial-enhanced liquid-crystal terahertz spatial phase modulator.
SPIE Optics and Photonics 2019, United States, San Diego, United States.
11 - 15 Aug 2019.
Record type:
Conference or Workshop Item
(Other)
Abstract
We demonstrate experimentally a very thin THz spatial phase modulator based on planar metamaterials hybridysed with a liquid-crystal (LC) cell. It consists of two layers of THz planar metamaterials separated by a 12 µm thick LC layer. Besides enhancing optical anisotropy of the LC layer, the metamaterials also act as spatially addressable electrodes, which transform the resulting structure into an array of sub-wavelength pixels with independently controlled electromagnetic phase. Our approach brings about a new family of LC-enabled but optically thin THz devices for efficient control and manipulation of THz wavefronts
Text
SPIE_Abstract_Buchnev
- Accepted Manuscript
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Published date: August 2019
Venue - Dates:
SPIE Optics and Photonics 2019, United States, San Diego, United States, 2019-08-11 - 2019-08-15
Identifiers
Local EPrints ID: 433620
URI: http://eprints.soton.ac.uk/id/eprint/433620
PURE UUID: c589c070-76f9-4287-8441-f534eaebee5c
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Date deposited: 28 Aug 2019 16:30
Last modified: 22 Nov 2021 02:59
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Contributors
Author:
Oleksandr Buchnev
Author:
Nina Podoliak
Author:
Korbian Kaltenecker
Author:
Markus Walther
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