Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing
This paper presents a simple metamaterial design to achieve the triple-band near-perfect absorption response that can be used in the area of sensor application. The introduced absorber consists of an array of Au strip and a bulk flat Au film separated by an insulator dielectric layer. Three narrow-b...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/7/1410 |
| _version_ | 1818199436138905600 |
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| author | Tao Chen Runyu Zhao Ben-Xin Wang |
| author_facet | Tao Chen Runyu Zhao Ben-Xin Wang |
| author_sort | Tao Chen |
| collection | DOAJ |
| description | This paper presents a simple metamaterial design to achieve the triple-band near-perfect absorption response that can be used in the area of sensor application. The introduced absorber consists of an array of Au strip and a bulk flat Au film separated by an insulator dielectric layer. Three narrow-band resonance absorption peaks are obtained by superposing three different modes (a fundamental mode resonance and two high-order responses) of the Au strip. These resonance modes (in particular of the last two modes) have large sensitivity to the changes of the surrounding index, overlayer thickness and the refractive index of the overlayer. |
| first_indexed | 2024-12-12T02:21:44Z |
| format | Article |
| id | doaj.art-b0e0249a19884ca7b3e62f0a3f9a8814 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-12T02:21:44Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b0e0249a19884ca7b3e62f0a3f9a88142022-12-22T00:41:39ZengMDPI AGApplied Sciences2076-34172019-04-0197141010.3390/app9071410app9071410Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> SensingTao Chen0Runyu Zhao1Ben-Xin Wang2School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaSchool of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaSchool of Science, Jiangnan University, Wuxi 214122, ChinaThis paper presents a simple metamaterial design to achieve the triple-band near-perfect absorption response that can be used in the area of sensor application. The introduced absorber consists of an array of Au strip and a bulk flat Au film separated by an insulator dielectric layer. Three narrow-band resonance absorption peaks are obtained by superposing three different modes (a fundamental mode resonance and two high-order responses) of the Au strip. These resonance modes (in particular of the last two modes) have large sensitivity to the changes of the surrounding index, overlayer thickness and the refractive index of the overlayer.https://www.mdpi.com/2076-3417/9/7/1410metamaterialstriple-band absorptionterahertzsensing |
| spellingShingle | Tao Chen Runyu Zhao Ben-Xin Wang Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing Applied Sciences metamaterials triple-band absorption terahertz sensing |
| title | Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing |
| title_full | Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing |
| title_fullStr | Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing |
| title_full_unstemmed | Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing |
| title_short | Theoretical Investigation of a Simple Design of Triple-Band Terahertz Metamaterial Absorber for High-<i>Q</i> Sensing |
| title_sort | theoretical investigation of a simple design of triple band terahertz metamaterial absorber for high i q i sensing |
| topic | metamaterials triple-band absorption terahertz sensing |
| url | https://www.mdpi.com/2076-3417/9/7/1410 |
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