Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials
Graphene can support surface plasmon polaritons (SPPs) in the terahertz band, and graphene SPP sensors are widely used in the field of terahertz micro- and nano-optical devices. In this paper, we propose an H-shaped graphene metasurface and investigate the plasmon-induced transparency (PIT) phenomen...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/14/12/997 |
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| author | Xiongxiong Wu Jiani Chen Shaolong Wang Yang Ren Yanning Yang Zhihui He |
| author_facet | Xiongxiong Wu Jiani Chen Shaolong Wang Yang Ren Yanning Yang Zhihui He |
| author_sort | Xiongxiong Wu |
| collection | DOAJ |
| description | Graphene can support surface plasmon polaritons (SPPs) in the terahertz band, and graphene SPP sensors are widely used in the field of terahertz micro- and nano-optical devices. In this paper, we propose an H-shaped graphene metasurface and investigate the plasmon-induced transparency (PIT) phenomenon in the proposed structure using the finite-difference time-domain (FDTD) method. Our results show that the Fermi energy levels, as well as certain shape parameters, can effectively modulate the PIT phenomenon in the proposed structure. Interestingly, changing some of these shape parameters can excite two dips into three. In terms of sensing performance, the maximum values of sensitivity and figure of merit (FOM) are 1.4028 THz/RIU and 17.97, respectively. These results offer valuable guidance for the use of terahertz optical graphene SPP sensors. |
| first_indexed | 2025-03-21T13:03:39Z |
| format | Article |
| id | doaj.art-2faaff514a5047388c1b8e4ef8b748a6 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2025-03-21T13:03:39Z |
| publishDate | 2024-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2faaff514a5047388c1b8e4ef8b748a62024-06-26T14:59:36ZengMDPI AGNanomaterials2079-49912024-06-01141299710.3390/nano14120997Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based MetamaterialsXiongxiong Wu0Jiani Chen1Shaolong Wang2Yang Ren3Yanning Yang4Zhihui He5School of Physics and Electronic Information, Yan’an University, Yan’an 716000, ChinaSchool of Physics and Electronic Information, Yan’an University, Yan’an 716000, ChinaSchool of Physics and Electronic Information, Yan’an University, Yan’an 716000, ChinaSchool of Physics and Electronic Information, Yan’an University, Yan’an 716000, ChinaSchool of Physics and Electronic Information, Yan’an University, Yan’an 716000, ChinaSchool of Physics and Electronic Information, Yan’an University, Yan’an 716000, ChinaGraphene can support surface plasmon polaritons (SPPs) in the terahertz band, and graphene SPP sensors are widely used in the field of terahertz micro- and nano-optical devices. In this paper, we propose an H-shaped graphene metasurface and investigate the plasmon-induced transparency (PIT) phenomenon in the proposed structure using the finite-difference time-domain (FDTD) method. Our results show that the Fermi energy levels, as well as certain shape parameters, can effectively modulate the PIT phenomenon in the proposed structure. Interestingly, changing some of these shape parameters can excite two dips into three. In terms of sensing performance, the maximum values of sensitivity and figure of merit (FOM) are 1.4028 THz/RIU and 17.97, respectively. These results offer valuable guidance for the use of terahertz optical graphene SPP sensors.https://www.mdpi.com/2079-4991/14/12/997surface plasmon polaritonsgrapheneterahertzsensingplasmon-induced transparency |
| spellingShingle | Xiongxiong Wu Jiani Chen Shaolong Wang Yang Ren Yanning Yang Zhihui He Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials Nanomaterials surface plasmon polaritons graphene terahertz sensing plasmon-induced transparency |
| title | Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials |
| title_full | Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials |
| title_fullStr | Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials |
| title_full_unstemmed | Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials |
| title_short | Sensing Based on Plasmon-Induced Transparency in H-Shaped Graphene-Based Metamaterials |
| title_sort | sensing based on plasmon induced transparency in h shaped graphene based metamaterials |
| topic | surface plasmon polaritons graphene terahertz sensing plasmon-induced transparency |
| url | https://www.mdpi.com/2079-4991/14/12/997 |
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