Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch
Achieving an efficient spectral tuning in liquid-crystal (LC)-loaded active photonic metamaterials has so far remained a challenge due to strong surface anchoring of LC molecules. This paper reports on a novel approach in the development of hybrid metamaterials that enables to overcome this problem...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/106653 http://hdl.handle.net/10220/25014 |
| _version_ | 1811688825787777024 |
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| author | Buchnev, Oleksandr Podoliak, Nina Kaczmarek, Malgosia Zheludev, Nikolay I. Fedotov, Vassili A. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Buchnev, Oleksandr Podoliak, Nina Kaczmarek, Malgosia Zheludev, Nikolay I. Fedotov, Vassili A. |
| author_sort | Buchnev, Oleksandr |
| collection | NTU |
| description | Achieving an efficient spectral tuning in liquid-crystal (LC)-loaded active photonic metamaterials has so far remained a challenge due to strong surface anchoring of LC molecules. This paper reports on a novel approach in the development of hybrid metamaterials that enables to overcome this problem and engage for the first time in-plane switching of liquid-crystal molecules on the nanoscale. Combined with the usual volume switching, it unlocks the full potential of the liquid crystals as a functional component of active metamaterial hybrids operating at optical frequencies. As a result, the resonant response of an active metasurface can now be controlled both in terms of its magnitude and wavelength with the spectral tunability approaching the theoretical limit of 9%. This mechanism of two-way active switching of the hybrid metamaterial is also confirmed theoretically by simulating the distribution of the LC director around the metamaterial fabric. |
| first_indexed | 2024-10-01T05:38:22Z |
| format | Journal Article |
| id | ntu-10356/106653 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:38:22Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1066532021-01-14T05:44:07Z Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch Buchnev, Oleksandr Podoliak, Nina Kaczmarek, Malgosia Zheludev, Nikolay I. Fedotov, Vassili A. School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Achieving an efficient spectral tuning in liquid-crystal (LC)-loaded active photonic metamaterials has so far remained a challenge due to strong surface anchoring of LC molecules. This paper reports on a novel approach in the development of hybrid metamaterials that enables to overcome this problem and engage for the first time in-plane switching of liquid-crystal molecules on the nanoscale. Combined with the usual volume switching, it unlocks the full potential of the liquid crystals as a functional component of active metamaterial hybrids operating at optical frequencies. As a result, the resonant response of an active metasurface can now be controlled both in terms of its magnitude and wavelength with the spectral tunability approaching the theoretical limit of 9%. This mechanism of two-way active switching of the hybrid metamaterial is also confirmed theoretically by simulating the distribution of the LC director around the metamaterial fabric. 2015-02-03T07:43:18Z 2019-12-06T22:15:42Z 2015-02-03T07:43:18Z 2019-12-06T22:15:42Z 2014 2014 Journal Article Buchnev, O., Podoliak, N., Kaczmarek, M., Zheludev, N. I., & Fedotov, V. A. (2015). Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch. Advanced optical materials, 3(5), 674-679. 2195-1071 https://hdl.handle.net/10356/106653 http://hdl.handle.net/10220/25014 10.1002/adom.201400494 en Advanced optical materials © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Buchnev, Oleksandr Podoliak, Nina Kaczmarek, Malgosia Zheludev, Nikolay I. Fedotov, Vassili A. Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch |
| title | Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch |
| title_full | Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch |
| title_fullStr | Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch |
| title_full_unstemmed | Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch |
| title_short | Electrically controlled nanostructured metasurface loaded with liquid crystal : toward multifunctional photonic switch |
| title_sort | electrically controlled nanostructured metasurface loaded with liquid crystal toward multifunctional photonic switch |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
| url | https://hdl.handle.net/10356/106653 http://hdl.handle.net/10220/25014 |
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