Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator
In this paper, a simple design of a polarization-selective tunable triple terahertz absorber based on a graphene rectangular ring resonator was proposed and studied. The absorber structure consists of a graphene rectangular ring resonant array on the top, SiO<sub>2</sub> dielectric layer...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Photonics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-6732/11/12/1160 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850085319286718464 |
|---|---|
| author | Jiang Wang Haixia Zhu Bo Ni Minhao Zhou Chengtao Feng Haibin Ni Jianhua Chang |
| author_facet | Jiang Wang Haixia Zhu Bo Ni Minhao Zhou Chengtao Feng Haibin Ni Jianhua Chang |
| author_sort | Jiang Wang |
| collection | DOAJ |
| description | In this paper, a simple design of a polarization-selective tunable triple terahertz absorber based on a graphene rectangular ring resonator was proposed and studied. The absorber structure consists of a graphene rectangular ring resonant array on the top, SiO<sub>2</sub> dielectric layer in the middle and gold at the bottom. The calculated results show that the absorber can achieve high-efficiency triple-band absorption under both <i>x</i> and <i>y</i> polarization incident light. When <i>x</i>-polarized light is incident, three distinctive absorption peaks at 2.73, 5.70 and 11.19 THz with absorption rates of 96.7%, 98.5% and 96.5% are achieved. When <i>y</i>-polarized light is incident, three additional absorption peaks at 2.29, 7.55 and 9.98 THz can be obtained with absorption rates of 96.3%, 90.3% and 97.4%, respectively. Moreover, the absorption wavelength of the absorber can be tuned by adjusting the chemical potential of the graphene. Owing to the high efficiency of triple-band absorption in different polarization states, the absorber has broad application prospects in terahertz polarization imaging, sensing and detection. |
| format | Article |
| id | doaj-art-52c196a458274496bd0a80ed1f032fb9 |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-52c196a458274496bd0a80ed1f032fb92025-08-20T02:43:45ZengMDPI AGPhotonics2304-67322024-12-011112116010.3390/photonics11121160Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring ResonatorJiang Wang0Haixia Zhu1Bo Ni2Minhao Zhou3Chengtao Feng4Haibin Ni5Jianhua Chang6School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213159, ChinaJiangsu Key Laboratory of Meteorological Observation and Information Processing, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaJiangsu Key Laboratory of Meteorological Observation and Information Processing, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaSchool of Microelectronics and Control Engineering, Changzhou University, Changzhou 213159, ChinaSchool of Microelectronics and Control Engineering, Changzhou University, Changzhou 213159, ChinaJiangsu Key Laboratory of Meteorological Observation and Information Processing, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaJiangsu Key Laboratory of Meteorological Observation and Information Processing, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaIn this paper, a simple design of a polarization-selective tunable triple terahertz absorber based on a graphene rectangular ring resonator was proposed and studied. The absorber structure consists of a graphene rectangular ring resonant array on the top, SiO<sub>2</sub> dielectric layer in the middle and gold at the bottom. The calculated results show that the absorber can achieve high-efficiency triple-band absorption under both <i>x</i> and <i>y</i> polarization incident light. When <i>x</i>-polarized light is incident, three distinctive absorption peaks at 2.73, 5.70 and 11.19 THz with absorption rates of 96.7%, 98.5% and 96.5% are achieved. When <i>y</i>-polarized light is incident, three additional absorption peaks at 2.29, 7.55 and 9.98 THz can be obtained with absorption rates of 96.3%, 90.3% and 97.4%, respectively. Moreover, the absorption wavelength of the absorber can be tuned by adjusting the chemical potential of the graphene. Owing to the high efficiency of triple-band absorption in different polarization states, the absorber has broad application prospects in terahertz polarization imaging, sensing and detection.https://www.mdpi.com/2304-6732/11/12/1160triple terahertz absorbergraphene rectangular ring resonatorpolarization selective |
| spellingShingle | Jiang Wang Haixia Zhu Bo Ni Minhao Zhou Chengtao Feng Haibin Ni Jianhua Chang Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator Photonics triple terahertz absorber graphene rectangular ring resonator polarization selective |
| title | Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator |
| title_full | Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator |
| title_fullStr | Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator |
| title_full_unstemmed | Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator |
| title_short | Simple Design of Polarization-Selective Tunable Triple Terahertz Absorber Based on Graphene Rectangular Ring Resonator |
| title_sort | simple design of polarization selective tunable triple terahertz absorber based on graphene rectangular ring resonator |
| topic | triple terahertz absorber graphene rectangular ring resonator polarization selective |
| url | https://www.mdpi.com/2304-6732/11/12/1160 |
| work_keys_str_mv | AT jiangwang simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator AT haixiazhu simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator AT boni simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator AT minhaozhou simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator AT chengtaofeng simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator AT haibinni simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator AT jianhuachang simpledesignofpolarizationselectivetunabletripleterahertzabsorberbasedongraphenerectangularringresonator |