Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene
A long-range surface plasmon polariton (SPP) waveguide, composed of double-layer graphene, can be pivotal in transferring and handling mid-infrared electromagnetic waves. However, one of the key challenges for this type of waveguide is how to excite the SPP modes through an incident light beam. In t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/7/1144 |
| _version_ | 1797438263416324096 |
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| author | Jianping Liu Weilin Wang Fang Xie Xiaoming Zhang Xia Zhou Yijun Yuan Lingling Wang |
| author_facet | Jianping Liu Weilin Wang Fang Xie Xiaoming Zhang Xia Zhou Yijun Yuan Lingling Wang |
| author_sort | Jianping Liu |
| collection | DOAJ |
| description | A long-range surface plasmon polariton (SPP) waveguide, composed of double-layer graphene, can be pivotal in transferring and handling mid-infrared electromagnetic waves. However, one of the key challenges for this type of waveguide is how to excite the SPP modes through an incident light beam. In this study, our proposed design of a novel grating, consisting of a graphene-based cylindrical long-range SPP waveguide array, successfully addresses this issue using finite-difference time-domain simulations. The results show that two types of symmetric coupling modes (SCMs) are excited through a normal incident light. The transmission characteristics of the two SCMs can be manipulated by changing the interaction of the double-layer gratings of graphene as well as by varying various parameters of the device. Similarly, four SCMs can be excited and controlled by an oblique incident light because this light source is equivalent to two orthogonal beams of light. Furthermore, this grating can be utilized in the fabrication of mid-infrared optical devices, such as filters and refractive index sensors. This grating, with double-layer graphene arrays, has the potential to excite and manipulate the mid-infrared electromagnetic waves in future photonic integrated circuits. |
| first_indexed | 2024-03-09T11:35:09Z |
| format | Article |
| id | doaj.art-95802e6e2049488f82806eca16d19631 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:35:09Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-95802e6e2049488f82806eca16d196312023-11-30T23:45:06ZengMDPI AGNanomaterials2079-49912022-03-01127114410.3390/nano12071144Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of GrapheneJianping Liu0Weilin Wang1Fang Xie2Xiaoming Zhang3Xia Zhou4Yijun Yuan5Lingling Wang6College of Physics Science and Engineering Technology, Yichun University, Yichun 336000, ChinaCollege of Physics Science and Engineering Technology, Yichun University, Yichun 336000, ChinaCollege of Physics Science and Engineering Technology, Yichun University, Yichun 336000, ChinaCollege of Physics Science and Engineering Technology, Yichun University, Yichun 336000, ChinaCollege of Literature, Journalism and Communication, Yichun University, Yichun 336000, ChinaCollege of Physics Science and Engineering Technology, Yichun University, Yichun 336000, ChinaLaboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronics, Hunan University, Changsha 410082, ChinaA long-range surface plasmon polariton (SPP) waveguide, composed of double-layer graphene, can be pivotal in transferring and handling mid-infrared electromagnetic waves. However, one of the key challenges for this type of waveguide is how to excite the SPP modes through an incident light beam. In this study, our proposed design of a novel grating, consisting of a graphene-based cylindrical long-range SPP waveguide array, successfully addresses this issue using finite-difference time-domain simulations. The results show that two types of symmetric coupling modes (SCMs) are excited through a normal incident light. The transmission characteristics of the two SCMs can be manipulated by changing the interaction of the double-layer gratings of graphene as well as by varying various parameters of the device. Similarly, four SCMs can be excited and controlled by an oblique incident light because this light source is equivalent to two orthogonal beams of light. Furthermore, this grating can be utilized in the fabrication of mid-infrared optical devices, such as filters and refractive index sensors. This grating, with double-layer graphene arrays, has the potential to excite and manipulate the mid-infrared electromagnetic waves in future photonic integrated circuits.https://www.mdpi.com/2079-4991/12/7/1144double-layer gratinggraphenesurface plasmon polaritonwaveguide |
| spellingShingle | Jianping Liu Weilin Wang Fang Xie Xiaoming Zhang Xia Zhou Yijun Yuan Lingling Wang Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene Nanomaterials double-layer grating graphene surface plasmon polariton waveguide |
| title | Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene |
| title_full | Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene |
| title_fullStr | Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene |
| title_full_unstemmed | Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene |
| title_short | Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene |
| title_sort | excitation of surface plasmon polariton modes with double layer gratings of graphene |
| topic | double-layer grating graphene surface plasmon polariton waveguide |
| url | https://www.mdpi.com/2079-4991/12/7/1144 |
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