Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator
Abstract Triple-band terahertz metamaterial absorber with design of miniaturization and compactness is presented in this work. The unit cell of the terahertz absorber is formed by an analogy I-typed resonator (a rectangular patch with two small notches) deposited on top of dielectric sheet and metal...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-03-01
|
| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s11671-022-03677-5 |
| _version_ | 1797719634544164864 |
|---|---|
| author | Ben-Xin Wang Chongyang Xu Guiyuan Duan Jieying Jiang Wei Xu Zhuchuang Yang Yangkuan Wu |
| author_facet | Ben-Xin Wang Chongyang Xu Guiyuan Duan Jieying Jiang Wei Xu Zhuchuang Yang Yangkuan Wu |
| author_sort | Ben-Xin Wang |
| collection | DOAJ |
| description | Abstract Triple-band terahertz metamaterial absorber with design of miniaturization and compactness is presented in this work. The unit cell of the terahertz absorber is formed by an analogy I-typed resonator (a rectangular patch with two small notches) deposited on top of dielectric sheet and metallic mirror. The miniaturized structure design exhibits three discrete frequency points with near-perfect absorption at terahertz regime. The three absorption peaks could be ascribed to localized resonances of analogy I-typed resonator, while the response positions of these absorption peaks at the analogy I-typed resonator are different by analyzing the near-field patterns of these resonance peaks. Changes in structure parameters of the analogy I-typed resonator are also investigated. Simulation results revealed that the notch sizes of the rectangular patch are the key factor to form the triple-band near-perfect absorption. Further structure optimization is given to demonstrate triple-band polarization insensitive performance. Moreover, actively tunable absorption properties are realized by inserting or introducing vanadium dioxide with adjustable conductivity into the metamaterial structure. It is revealed that the insulator–metal phase transition of vanadium dioxide is the main reason for the modulation of absorption performance. Compared with previous multiple-band absorbers, the device given here has excellent features of high degrees of simplification, miniaturization, and active modulation, these are important in practical applications. |
| first_indexed | 2024-03-12T09:07:56Z |
| format | Article |
| id | doaj.art-663e5b5d9e12460e91e864e3e18b732c |
| institution | Directory Open Access Journal |
| issn | 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:07:56Z |
| publishDate | 2022-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-663e5b5d9e12460e91e864e3e18b732c2023-09-02T15:11:29ZengSpringerOpenNanoscale Research Letters1556-276X2022-03-0117111210.1186/s11671-022-03677-5Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed ResonatorBen-Xin Wang0Chongyang Xu1Guiyuan Duan2Jieying Jiang3Wei Xu4Zhuchuang Yang5Yangkuan Wu6School of Science, Jiangnan UniversitySchool of Science, Jiangnan UniversitySchool of Science, Jiangnan UniversitySchool of Science, Jiangnan UniversitySchool of Science, Jiangnan UniversitySchool of Science, Jiangnan UniversitySchool of Science, Jiangnan UniversityAbstract Triple-band terahertz metamaterial absorber with design of miniaturization and compactness is presented in this work. The unit cell of the terahertz absorber is formed by an analogy I-typed resonator (a rectangular patch with two small notches) deposited on top of dielectric sheet and metallic mirror. The miniaturized structure design exhibits three discrete frequency points with near-perfect absorption at terahertz regime. The three absorption peaks could be ascribed to localized resonances of analogy I-typed resonator, while the response positions of these absorption peaks at the analogy I-typed resonator are different by analyzing the near-field patterns of these resonance peaks. Changes in structure parameters of the analogy I-typed resonator are also investigated. Simulation results revealed that the notch sizes of the rectangular patch are the key factor to form the triple-band near-perfect absorption. Further structure optimization is given to demonstrate triple-band polarization insensitive performance. Moreover, actively tunable absorption properties are realized by inserting or introducing vanadium dioxide with adjustable conductivity into the metamaterial structure. It is revealed that the insulator–metal phase transition of vanadium dioxide is the main reason for the modulation of absorption performance. Compared with previous multiple-band absorbers, the device given here has excellent features of high degrees of simplification, miniaturization, and active modulation, these are important in practical applications.https://doi.org/10.1186/s11671-022-03677-5Terahertz metamaterialPerfect absorberTriple-band absorptionAnalogy I-typed resonator |
| spellingShingle | Ben-Xin Wang Chongyang Xu Guiyuan Duan Jieying Jiang Wei Xu Zhuchuang Yang Yangkuan Wu Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator Nanoscale Research Letters Terahertz metamaterial Perfect absorber Triple-band absorption Analogy I-typed resonator |
| title | Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator |
| title_full | Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator |
| title_fullStr | Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator |
| title_full_unstemmed | Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator |
| title_short | Miniaturized and Actively Tunable Triple-Band Terahertz Metamaterial Absorber Using an Analogy I-Typed Resonator |
| title_sort | miniaturized and actively tunable triple band terahertz metamaterial absorber using an analogy i typed resonator |
| topic | Terahertz metamaterial Perfect absorber Triple-band absorption Analogy I-typed resonator |
| url | https://doi.org/10.1186/s11671-022-03677-5 |
| work_keys_str_mv | AT benxinwang miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator AT chongyangxu miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator AT guiyuanduan miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator AT jieyingjiang miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator AT weixu miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator AT zhuchuangyang miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator AT yangkuanwu miniaturizedandactivelytunabletriplebandterahertzmetamaterialabsorberusingananalogyitypedresonator |