{"title":"Cloaking of Cylindrical Objects with Graphene-Metasurface Structures for Low-Terahertz Applications","authors":"S. Pawar, Hossein Mehrpour Bernety, A. Yakovlev","doi":"10.1109/AP-S/USNC-URSI47032.2022.9886308","DOIUrl":null,"url":null,"abstract":"It is a common practice for most of the theoretical studies to assume an ultra-high mobility and/or high value of chemical potential for graphene to realize its various functionalities such as perfect absorption, transmission, cloaking, etc. However, it is very difficult to actually fabricate such nano-patterned graphene structure, thus compromising its practical performance, despite the appeal of theoretical predictions. In this paper, we present a graphene-metasurface structure, taking inspiration from the design in ‘X. Wang and S. A. Tretyakov, IEEE Trans. Antenna Propag., vol. 67, no. 6, 2019'. When this specific metasurface is enveloped around cylindrical objects, the scattering width of the object reduces noticeably, thereby implying the cloaking effect. Our design utilizes extremely low values for mobility and chemical potential of graphene, making it highly desirable for practical applications.","PeriodicalId":371560,"journal":{"name":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9886308","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
It is a common practice for most of the theoretical studies to assume an ultra-high mobility and/or high value of chemical potential for graphene to realize its various functionalities such as perfect absorption, transmission, cloaking, etc. However, it is very difficult to actually fabricate such nano-patterned graphene structure, thus compromising its practical performance, despite the appeal of theoretical predictions. In this paper, we present a graphene-metasurface structure, taking inspiration from the design in ‘X. Wang and S. A. Tretyakov, IEEE Trans. Antenna Propag., vol. 67, no. 6, 2019'. When this specific metasurface is enveloped around cylindrical objects, the scattering width of the object reduces noticeably, thereby implying the cloaking effect. Our design utilizes extremely low values for mobility and chemical potential of graphene, making it highly desirable for practical applications.
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