Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal
This paper introduces a tunable metamaterial absorber (MA) based on polymer network liquid crystal (PNLC) in the terahertz (THz) frequency band. Under the optimal polymerization condition, through electrical control of the orientation of the PNLC embedded in the frequency selective surface, the reso...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/8/12/2454 |
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| author | Zhiping Yin Chaofan Wan Guangsheng Deng Andong Zheng Peng Wang Yang Yang Sheng Gao Jun Yang Fei Cai Zelun Li Hongbo Lu |
| author_facet | Zhiping Yin Chaofan Wan Guangsheng Deng Andong Zheng Peng Wang Yang Yang Sheng Gao Jun Yang Fei Cai Zelun Li Hongbo Lu |
| author_sort | Zhiping Yin |
| collection | DOAJ |
| description | This paper introduces a tunable metamaterial absorber (MA) based on polymer network liquid crystal (PNLC) in the terahertz (THz) frequency band. Under the optimal polymerization condition, through electrical control of the orientation of the PNLC embedded in the frequency selective surface, the resonant frequency of the absorber can be tuned from 416.5 to 405.0 GHz, corresponding to fractional frequency bandwidth of 2.8%. The experimental results show that the proposed MA based on the PNLC offers an adjustment time of 10 ms and recovery time of 85 ms, which is significantly faster than the tunable metamaterial devices based on conventional nematic liquid crystal (LC). |
| first_indexed | 2024-04-13T01:40:50Z |
| format | Article |
| id | doaj.art-75c202494fd94b9e9e53b60cf6033b44 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-13T01:40:50Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-75c202494fd94b9e9e53b60cf6033b442022-12-22T03:08:10ZengMDPI AGApplied Sciences2076-34172018-12-01812245410.3390/app8122454app8122454Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid CrystalZhiping Yin0Chaofan Wan1Guangsheng Deng2Andong Zheng3Peng Wang4Yang Yang5Sheng Gao6Jun Yang7Fei Cai8Zelun Li9Hongbo Lu10National Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaCollege of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaNational Key Laboratory of Advanced Display Technology, Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, ChinaThis paper introduces a tunable metamaterial absorber (MA) based on polymer network liquid crystal (PNLC) in the terahertz (THz) frequency band. Under the optimal polymerization condition, through electrical control of the orientation of the PNLC embedded in the frequency selective surface, the resonant frequency of the absorber can be tuned from 416.5 to 405.0 GHz, corresponding to fractional frequency bandwidth of 2.8%. The experimental results show that the proposed MA based on the PNLC offers an adjustment time of 10 ms and recovery time of 85 ms, which is significantly faster than the tunable metamaterial devices based on conventional nematic liquid crystal (LC).https://www.mdpi.com/2076-3417/8/12/2454polymer networkabsorberliquid crystalresponse timeterahertz |
| spellingShingle | Zhiping Yin Chaofan Wan Guangsheng Deng Andong Zheng Peng Wang Yang Yang Sheng Gao Jun Yang Fei Cai Zelun Li Hongbo Lu Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal Applied Sciences polymer network absorber liquid crystal response time terahertz |
| title | Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal |
| title_full | Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal |
| title_fullStr | Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal |
| title_full_unstemmed | Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal |
| title_short | Fast-Tunable Terahertz Metamaterial Absorber Based on Polymer Network Liquid Crystal |
| title_sort | fast tunable terahertz metamaterial absorber based on polymer network liquid crystal |
| topic | polymer network absorber liquid crystal response time terahertz |
| url | https://www.mdpi.com/2076-3417/8/12/2454 |
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