Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab
In this paper, we theoretically analyze and design a dual-narrowband terahertz (THz) absorber based on a hole array drilled into a metallic slab. A very high-quality factor (<i>Q</i>) is achieved at both of the resonance frequencies. A circuit model-based approach is developed for the an...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/15/1860 |
| _version_ | 1797525640128233472 |
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| author | Saeedeh Barzegar-Parizi Amir Ebrahimi |
| author_facet | Saeedeh Barzegar-Parizi Amir Ebrahimi |
| author_sort | Saeedeh Barzegar-Parizi |
| collection | DOAJ |
| description | In this paper, we theoretically analyze and design a dual-narrowband terahertz (THz) absorber based on a hole array drilled into a metallic slab. A very high-quality factor (<i>Q</i>) is achieved at both of the resonance frequencies. A circuit model-based approach is developed for the analysis and design of the proposed absorber. The absorption peaks occur at 2.46 and 3.75 THz frequencies with 98% and 96% absorptions at normal incidence, respectively. The achieved quality factors are 149 and 144, at 50% absorbance for the two absorption bands, respectively. |
| first_indexed | 2024-03-10T09:16:56Z |
| format | Article |
| id | doaj.art-4cbe2e758197473491b38a6cd2ea0109 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T09:16:56Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-4cbe2e758197473491b38a6cd2ea01092023-11-22T05:32:03ZengMDPI AGElectronics2079-92922021-08-011015186010.3390/electronics10151860Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic SlabSaeedeh Barzegar-Parizi0Amir Ebrahimi1Department of Electrical Engineering, Sirjan University of Technology, Sirjan 7813733385, IranSchool of Engineering, RMIT University, Melbourne, VIC 3003, AustraliaIn this paper, we theoretically analyze and design a dual-narrowband terahertz (THz) absorber based on a hole array drilled into a metallic slab. A very high-quality factor (<i>Q</i>) is achieved at both of the resonance frequencies. A circuit model-based approach is developed for the analysis and design of the proposed absorber. The absorption peaks occur at 2.46 and 3.75 THz frequencies with 98% and 96% absorptions at normal incidence, respectively. The achieved quality factors are 149 and 144, at 50% absorbance for the two absorption bands, respectively.https://www.mdpi.com/2079-9292/10/15/1860absorbernarrow bandcircuit model |
| spellingShingle | Saeedeh Barzegar-Parizi Amir Ebrahimi Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab Electronics absorber narrow band circuit model |
| title | Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab |
| title_full | Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab |
| title_fullStr | Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab |
| title_full_unstemmed | Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab |
| title_short | Terahertz High-Q Absorber Based on Holes Array Perforated into a Metallic Slab |
| title_sort | terahertz high q absorber based on holes array perforated into a metallic slab |
| topic | absorber narrow band circuit model |
| url | https://www.mdpi.com/2079-9292/10/15/1860 |
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