{"title":"石墨烯超表面宽带可调谐太赫兹吸收器的设计策略","authors":"Deepanshu Sahu, R. Panwar","doi":"10.1109/CAPS52117.2021.9730664","DOIUrl":null,"url":null,"abstract":"The design of a simple and efficient metasurface absorber at terahertz (THz) frequencies is an extremely difficult job. In this work, an effort has been made to design and investigate a new kind of absorber with the aid of a graphene-inspired tunable metasurface at THz frequencies. Critical performance analysis of absorber has been carried out in terms of absorptivity, normalized impedance, polarization insensitivity, and angular stability. A graphene-metasurface absorber has been found to possess an absorptivity of 96% at 6.1 THz with a corresponding absorption bandwidth of 1.4 THz. The total thickness of the absorber is only 10.2 µm accomplished with the help of a very simple design. Besides, the impact of graphene's chemical potential has been studied up to 0.7eV. The outcomes reflect the tremendous capability of the proposed metasurface configuration for THz applications.","PeriodicalId":445427,"journal":{"name":"2021 International Conference on Control, Automation, Power and Signal Processing (CAPS)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design Strategy for Graphene Metasurface Wideband Tunable THz Absorber\",\"authors\":\"Deepanshu Sahu, R. Panwar\",\"doi\":\"10.1109/CAPS52117.2021.9730664\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The design of a simple and efficient metasurface absorber at terahertz (THz) frequencies is an extremely difficult job. In this work, an effort has been made to design and investigate a new kind of absorber with the aid of a graphene-inspired tunable metasurface at THz frequencies. Critical performance analysis of absorber has been carried out in terms of absorptivity, normalized impedance, polarization insensitivity, and angular stability. A graphene-metasurface absorber has been found to possess an absorptivity of 96% at 6.1 THz with a corresponding absorption bandwidth of 1.4 THz. The total thickness of the absorber is only 10.2 µm accomplished with the help of a very simple design. Besides, the impact of graphene's chemical potential has been studied up to 0.7eV. The outcomes reflect the tremendous capability of the proposed metasurface configuration for THz applications.\",\"PeriodicalId\":445427,\"journal\":{\"name\":\"2021 International Conference on Control, Automation, Power and Signal Processing (CAPS)\",\"volume\":\"77 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 International Conference on Control, Automation, Power and Signal Processing (CAPS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CAPS52117.2021.9730664\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 International Conference on Control, Automation, Power and Signal Processing (CAPS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CAPS52117.2021.9730664","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design Strategy for Graphene Metasurface Wideband Tunable THz Absorber
The design of a simple and efficient metasurface absorber at terahertz (THz) frequencies is an extremely difficult job. In this work, an effort has been made to design and investigate a new kind of absorber with the aid of a graphene-inspired tunable metasurface at THz frequencies. Critical performance analysis of absorber has been carried out in terms of absorptivity, normalized impedance, polarization insensitivity, and angular stability. A graphene-metasurface absorber has been found to possess an absorptivity of 96% at 6.1 THz with a corresponding absorption bandwidth of 1.4 THz. The total thickness of the absorber is only 10.2 µm accomplished with the help of a very simple design. Besides, the impact of graphene's chemical potential has been studied up to 0.7eV. The outcomes reflect the tremendous capability of the proposed metasurface configuration for THz applications.
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