Multi-polarization selective absorber based on terahertz metasurface
Tunable absorbers attract much attention due to their wide applications, such as integrated optical sensors, multiplexing far-field imaging and so on. In this paper, we design a multi-polarization selective absorber based on terahertz metasurface, whose geometric symmetry is tunable to satisfy the r...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379723009270 |
| _version_ | 1797615926232743936 |
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| author | Yu Tian Zhengfei Yin Xingchen Zhao Jiawei Wang Pu Liu Kun Zhang Weijin Kong |
| author_facet | Yu Tian Zhengfei Yin Xingchen Zhao Jiawei Wang Pu Liu Kun Zhang Weijin Kong |
| author_sort | Yu Tian |
| collection | DOAJ |
| description | Tunable absorbers attract much attention due to their wide applications, such as integrated optical sensors, multiplexing far-field imaging and so on. In this paper, we design a multi-polarization selective absorber based on terahertz metasurface, whose geometric symmetry is tunable to satisfy the requirements of linear and circular polarization selective absorbers. At the ON state, the metasurface selectively absorbs y-polarized wave at 1.0 THz, with the linear dichroism of 0.84. At the OFF state, the metasurface selectively absorbs left circularly polarized wave at 1.16 THz, with the circular dichroism of 0.81. The physical mechanism of the metasurface is explained by the Jones calculus and the electromagnetic field distributions. In addition, the multi-polarization selective behavior is insensitive to the incident angle. Finally, we design a sample to verify the potential application of the metasurface absorber, which displays multiplexing imaging of ‘C’, ‘mirrored C’, ‘O’ and blurred images under different polarized incidences at different states. Such a metasurface, switching between linear polarization selective absorber and circular polarization selective absorber, may achieve stable applications in multifunction integrated absorbers, detectors, and image encryptions. |
| first_indexed | 2024-03-11T07:33:55Z |
| format | Article |
| id | doaj.art-69346a41ed3c4dac81dff0a37cdbea7e |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-11T07:33:55Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-69346a41ed3c4dac81dff0a37cdbea7e2023-11-17T05:26:38ZengElsevierResults in Physics2211-37972023-11-0154107134Multi-polarization selective absorber based on terahertz metasurfaceYu Tian0Zhengfei Yin1Xingchen Zhao2Jiawei Wang3Pu Liu4Kun Zhang5Weijin Kong6College of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaCollege of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaCollege of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaCollege of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaCollege of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaCorresponding authors.; College of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaCorresponding authors.; College of Physics Science, Center for Marine Observation and Communications, Qingdao University, Qingdao 266071, ChinaTunable absorbers attract much attention due to their wide applications, such as integrated optical sensors, multiplexing far-field imaging and so on. In this paper, we design a multi-polarization selective absorber based on terahertz metasurface, whose geometric symmetry is tunable to satisfy the requirements of linear and circular polarization selective absorbers. At the ON state, the metasurface selectively absorbs y-polarized wave at 1.0 THz, with the linear dichroism of 0.84. At the OFF state, the metasurface selectively absorbs left circularly polarized wave at 1.16 THz, with the circular dichroism of 0.81. The physical mechanism of the metasurface is explained by the Jones calculus and the electromagnetic field distributions. In addition, the multi-polarization selective behavior is insensitive to the incident angle. Finally, we design a sample to verify the potential application of the metasurface absorber, which displays multiplexing imaging of ‘C’, ‘mirrored C’, ‘O’ and blurred images under different polarized incidences at different states. Such a metasurface, switching between linear polarization selective absorber and circular polarization selective absorber, may achieve stable applications in multifunction integrated absorbers, detectors, and image encryptions.http://www.sciencedirect.com/science/article/pii/S2211379723009270MetasurfacePolarization selective absorberSymmetry switchingMultiplexing imaging |
| spellingShingle | Yu Tian Zhengfei Yin Xingchen Zhao Jiawei Wang Pu Liu Kun Zhang Weijin Kong Multi-polarization selective absorber based on terahertz metasurface Results in Physics Metasurface Polarization selective absorber Symmetry switching Multiplexing imaging |
| title | Multi-polarization selective absorber based on terahertz metasurface |
| title_full | Multi-polarization selective absorber based on terahertz metasurface |
| title_fullStr | Multi-polarization selective absorber based on terahertz metasurface |
| title_full_unstemmed | Multi-polarization selective absorber based on terahertz metasurface |
| title_short | Multi-polarization selective absorber based on terahertz metasurface |
| title_sort | multi polarization selective absorber based on terahertz metasurface |
| topic | Metasurface Polarization selective absorber Symmetry switching Multiplexing imaging |
| url | http://www.sciencedirect.com/science/article/pii/S2211379723009270 |
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