Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber
A tunable three-band absorber has been proposed and investigated in the terahertz (THz) with graphene strips. Three perfect absorption is elaborately analyzed with the electrical field and the induced surface current distribution. Owing to the unique character of graphene, the position and intensity...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/acd61d |
| _version_ | 1797746433223294976 |
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| author | Ying Zhan Chunzhen Fan |
| author_facet | Ying Zhan Chunzhen Fan |
| author_sort | Ying Zhan |
| collection | DOAJ |
| description | A tunable three-band absorber has been proposed and investigated in the terahertz (THz) with graphene strips. Three perfect absorption is elaborately analyzed with the electrical field and the induced surface current distribution. Owing to the unique character of graphene, the position and intensity of three peaks are flexibly regulated with different Fermi energy and chemical potential. Meanwhile, an on to off modulation of the perfect absorption is achieved when the polarization angle varies from 0 to 90°, and the modulation degree of three resonant peaks can simultaneously approach 100%, which are much higher than the previous work. Moreover, the tunable absorption is examined with different geometry parameters and intermediate medium. Such highly tunable absorber with our proposed design has numerous application potential in the controllable optical switchers, filters, detectors, and sensors. |
| first_indexed | 2024-03-12T15:36:45Z |
| format | Article |
| id | doaj.art-d595efcd167145e9a8be50e7dd146d16 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:36:45Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-d595efcd167145e9a8be50e7dd146d162023-08-09T16:11:03ZengIOP PublishingMaterials Research Express2053-15912023-01-0110505580210.1088/2053-1591/acd61dInvestigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorberYing Zhan0https://orcid.org/0000-0001-9488-8044Chunzhen Fan1https://orcid.org/0000-0001-9520-5831School of Physics and Microelectronics, Zhengzhou University , Zhengzhou 450001, People’s Republic of ChinaSchool of Physics and Microelectronics, Zhengzhou University , Zhengzhou 450001, People’s Republic of ChinaA tunable three-band absorber has been proposed and investigated in the terahertz (THz) with graphene strips. Three perfect absorption is elaborately analyzed with the electrical field and the induced surface current distribution. Owing to the unique character of graphene, the position and intensity of three peaks are flexibly regulated with different Fermi energy and chemical potential. Meanwhile, an on to off modulation of the perfect absorption is achieved when the polarization angle varies from 0 to 90°, and the modulation degree of three resonant peaks can simultaneously approach 100%, which are much higher than the previous work. Moreover, the tunable absorption is examined with different geometry parameters and intermediate medium. Such highly tunable absorber with our proposed design has numerous application potential in the controllable optical switchers, filters, detectors, and sensors.https://doi.org/10.1088/2053-1591/acd61dperfect absorptiongraphenemetamaterials |
| spellingShingle | Ying Zhan Chunzhen Fan Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber Materials Research Express perfect absorption graphene metamaterials |
| title | Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber |
| title_full | Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber |
| title_fullStr | Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber |
| title_full_unstemmed | Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber |
| title_short | Investigation on the tunable and polarization sensitive three-band terahertz graphene metamaterial absorber |
| title_sort | investigation on the tunable and polarization sensitive three band terahertz graphene metamaterial absorber |
| topic | perfect absorption graphene metamaterials |
| url | https://doi.org/10.1088/2053-1591/acd61d |
| work_keys_str_mv | AT yingzhan investigationonthetunableandpolarizationsensitivethreebandterahertzgraphenemetamaterialabsorber AT chunzhenfan investigationonthetunableandpolarizationsensitivethreebandterahertzgraphenemetamaterialabsorber |