A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals
The performance of metamaterial is limited to a designed narrow band due to its resonant nature, it is highly desirable to incorporate active inclusions in metamaterials to extend the operation bandwidth. This review summarizes the development in realizing the tunability of electromagnetic response...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-02-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2021.633104/full |
| _version_ | 1818411352291540992 |
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| author | Jing Xu Ruisheng Yang Yuancheng Fan Quanhong Fu Fuli Zhang |
| author_facet | Jing Xu Ruisheng Yang Yuancheng Fan Quanhong Fu Fuli Zhang |
| author_sort | Jing Xu |
| collection | DOAJ |
| description | The performance of metamaterial is limited to a designed narrow band due to its resonant nature, it is highly desirable to incorporate active inclusions in metamaterials to extend the operation bandwidth. This review summarizes the development in realizing the tunability of electromagnetic response in metamaterials incorporated with nematic liquid crystal (LC). From rigorous comparison, it is found that the anisotropic property of nematic LC is essential in predicting the influence of LC molecular director orientation on the resonant frequency of metamaterials. By carefully designing the metamaterials and properly infiltrating LC, the operation frequency of single/double negative parameters of metamaterials can be dynamically modulated with remarkable red/blue-shift, depending on the LC molecular orientation angle. Moreover, the recent liquid crystal-based developments and novel applications are investigated and highlighted. |
| first_indexed | 2024-12-14T10:30:03Z |
| format | Article |
| id | doaj.art-94706a1c7ad04eff940fb7425d00885c |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-14T10:30:03Z |
| publishDate | 2021-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-94706a1c7ad04eff940fb7425d00885c2022-12-21T23:06:10ZengFrontiers Media S.A.Frontiers in Physics2296-424X2021-02-01910.3389/fphy.2021.633104633104A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid CrystalsJing XuRuisheng YangYuancheng FanQuanhong FuFuli ZhangThe performance of metamaterial is limited to a designed narrow band due to its resonant nature, it is highly desirable to incorporate active inclusions in metamaterials to extend the operation bandwidth. This review summarizes the development in realizing the tunability of electromagnetic response in metamaterials incorporated with nematic liquid crystal (LC). From rigorous comparison, it is found that the anisotropic property of nematic LC is essential in predicting the influence of LC molecular director orientation on the resonant frequency of metamaterials. By carefully designing the metamaterials and properly infiltrating LC, the operation frequency of single/double negative parameters of metamaterials can be dynamically modulated with remarkable red/blue-shift, depending on the LC molecular orientation angle. Moreover, the recent liquid crystal-based developments and novel applications are investigated and highlighted.https://www.frontiersin.org/articles/10.3389/fphy.2021.633104/fulltunable metamaterialsnegative index metamaterialliquid crystalsLiquid crystals reorientationsreconfigurable metamaterials |
| spellingShingle | Jing Xu Ruisheng Yang Yuancheng Fan Quanhong Fu Fuli Zhang A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals Frontiers in Physics tunable metamaterials negative index metamaterial liquid crystals Liquid crystals reorientations reconfigurable metamaterials |
| title | A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals |
| title_full | A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals |
| title_fullStr | A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals |
| title_full_unstemmed | A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals |
| title_short | A Review of Tunable Electromagnetic Metamaterials With Anisotropic Liquid Crystals |
| title_sort | review of tunable electromagnetic metamaterials with anisotropic liquid crystals |
| topic | tunable metamaterials negative index metamaterial liquid crystals Liquid crystals reorientations reconfigurable metamaterials |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2021.633104/full |
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