Terahertz Broadband Absorber Based on a Combined Circular Disc Structure
To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concent...
Ausführliche Beschreibung
Autor*in: |
Meihong Huang [verfasserIn] Kaihua Wei [verfasserIn] Pinghui Wu [verfasserIn] Danyang Xu [verfasserIn] Yan Xu [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Übergeordnetes Werk: |
In: Micromachines - MDPI AG, 2010, 12(2021), 11, p 1290 |
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Übergeordnetes Werk: |
volume:12 ; year:2021 ; number:11, p 1290 |
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DOI / URN: |
10.3390/mi12111290 |
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Katalog-ID: |
DOAJ051408783 |
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10.3390/mi12111290 doi (DE-627)DOAJ051408783 (DE-599)DOAJ41a54f8f48ab4699ac6d102ce6d9298c DE-627 ger DE-627 rakwb eng TJ1-1570 Meihong Huang verfasserin aut Terahertz Broadband Absorber Based on a Combined Circular Disc Structure 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. terahertz perfect absorption broadband ring-disk structure polarization insensitive Mechanical engineering and machinery Kaihua Wei verfasserin aut Pinghui Wu verfasserin aut Danyang Xu verfasserin aut Yan Xu verfasserin aut In Micromachines MDPI AG, 2010 12(2021), 11, p 1290 (DE-627)665016069 (DE-600)2620864-7 2072666X nnns volume:12 year:2021 number:11, p 1290 https://doi.org/10.3390/mi12111290 kostenfrei https://doaj.org/article/41a54f8f48ab4699ac6d102ce6d9298c kostenfrei https://www.mdpi.com/2072-666X/12/11/1290 kostenfrei https://doaj.org/toc/2072-666X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 11, p 1290 |
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10.3390/mi12111290 doi (DE-627)DOAJ051408783 (DE-599)DOAJ41a54f8f48ab4699ac6d102ce6d9298c DE-627 ger DE-627 rakwb eng TJ1-1570 Meihong Huang verfasserin aut Terahertz Broadband Absorber Based on a Combined Circular Disc Structure 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. terahertz perfect absorption broadband ring-disk structure polarization insensitive Mechanical engineering and machinery Kaihua Wei verfasserin aut Pinghui Wu verfasserin aut Danyang Xu verfasserin aut Yan Xu verfasserin aut In Micromachines MDPI AG, 2010 12(2021), 11, p 1290 (DE-627)665016069 (DE-600)2620864-7 2072666X nnns volume:12 year:2021 number:11, p 1290 https://doi.org/10.3390/mi12111290 kostenfrei https://doaj.org/article/41a54f8f48ab4699ac6d102ce6d9298c kostenfrei https://www.mdpi.com/2072-666X/12/11/1290 kostenfrei https://doaj.org/toc/2072-666X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 11, p 1290 |
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10.3390/mi12111290 doi (DE-627)DOAJ051408783 (DE-599)DOAJ41a54f8f48ab4699ac6d102ce6d9298c DE-627 ger DE-627 rakwb eng TJ1-1570 Meihong Huang verfasserin aut Terahertz Broadband Absorber Based on a Combined Circular Disc Structure 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. terahertz perfect absorption broadband ring-disk structure polarization insensitive Mechanical engineering and machinery Kaihua Wei verfasserin aut Pinghui Wu verfasserin aut Danyang Xu verfasserin aut Yan Xu verfasserin aut In Micromachines MDPI AG, 2010 12(2021), 11, p 1290 (DE-627)665016069 (DE-600)2620864-7 2072666X nnns volume:12 year:2021 number:11, p 1290 https://doi.org/10.3390/mi12111290 kostenfrei https://doaj.org/article/41a54f8f48ab4699ac6d102ce6d9298c kostenfrei https://www.mdpi.com/2072-666X/12/11/1290 kostenfrei https://doaj.org/toc/2072-666X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 11, p 1290 |
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10.3390/mi12111290 doi (DE-627)DOAJ051408783 (DE-599)DOAJ41a54f8f48ab4699ac6d102ce6d9298c DE-627 ger DE-627 rakwb eng TJ1-1570 Meihong Huang verfasserin aut Terahertz Broadband Absorber Based on a Combined Circular Disc Structure 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. terahertz perfect absorption broadband ring-disk structure polarization insensitive Mechanical engineering and machinery Kaihua Wei verfasserin aut Pinghui Wu verfasserin aut Danyang Xu verfasserin aut Yan Xu verfasserin aut In Micromachines MDPI AG, 2010 12(2021), 11, p 1290 (DE-627)665016069 (DE-600)2620864-7 2072666X nnns volume:12 year:2021 number:11, p 1290 https://doi.org/10.3390/mi12111290 kostenfrei https://doaj.org/article/41a54f8f48ab4699ac6d102ce6d9298c kostenfrei https://www.mdpi.com/2072-666X/12/11/1290 kostenfrei https://doaj.org/toc/2072-666X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 11, p 1290 |
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10.3390/mi12111290 doi (DE-627)DOAJ051408783 (DE-599)DOAJ41a54f8f48ab4699ac6d102ce6d9298c DE-627 ger DE-627 rakwb eng TJ1-1570 Meihong Huang verfasserin aut Terahertz Broadband Absorber Based on a Combined Circular Disc Structure 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. terahertz perfect absorption broadband ring-disk structure polarization insensitive Mechanical engineering and machinery Kaihua Wei verfasserin aut Pinghui Wu verfasserin aut Danyang Xu verfasserin aut Yan Xu verfasserin aut In Micromachines MDPI AG, 2010 12(2021), 11, p 1290 (DE-627)665016069 (DE-600)2620864-7 2072666X nnns volume:12 year:2021 number:11, p 1290 https://doi.org/10.3390/mi12111290 kostenfrei https://doaj.org/article/41a54f8f48ab4699ac6d102ce6d9298c kostenfrei https://www.mdpi.com/2072-666X/12/11/1290 kostenfrei https://doaj.org/toc/2072-666X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2021 11, p 1290 |
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Terahertz Broadband Absorber Based on a Combined Circular Disc Structure |
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To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. |
abstractGer |
To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. |
abstract_unstemmed |
To solve the problem of complex structure and narrow absorption band of most of today′s terahertz absorbers, this paper proposes and utilizes the finite element (COMSOL) method to numerically simulate a broadband absorber based on a straightforward periodic structure consisting of a disk and concentric ring. The final results show that our designed absorber has an absorption rate of over 99% in the broadband range of 9.06 THz to 9.8 THz and an average of over 97.7% in the ultra-broadband range of 8.62 THz to 10 THz. The reason for the high absorption is explained by the depiction of the electric field on the absorber surface at different frequencies. In addition, the materials for the top pattern of the absorber are replaced by Cu, Ag, or Al, and the absorber still achieves perfect absorption with different metal materials. Due to the perfect symmetry of the absorber structure, the absorber is very polarization-insensitive. The overall design is simple, easy to process and production. Therefore, our research will offer great potential for applications in areas such as terahertz electromagnetic stealth, sensing, and thermal imaging. |
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