{"title":"通过相变超表面的可切换太赫兹偏振转换","authors":"Xiaofang Wu, F. Lan, Zongjun Shi, Ziqiang Yang","doi":"10.1109/PIERS.2017.8261714","DOIUrl":null,"url":null,"abstract":"We have designed a switchable ultrathin THz linearly and circularly reflective polarization converter (RPC) by inserting phase-change material, vanadium dioxide (VO2), into a chiral metasurface (CM). By thermally controlling of the VO2 phase transition, over 99.1% 90° linear polarization (LP) conversion modulation depth and dual-band linear to circular polarization (CP) conversion with ellipticity close to 1 have been obtained. These excellent properties make the composite chiral metamaterials particularly suitable for designing tunable polarization rotating devices, which can be widely used in detection, sensing and communications.","PeriodicalId":387984,"journal":{"name":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Switchable terahertz polarization conversion via phase-change metasurface\",\"authors\":\"Xiaofang Wu, F. Lan, Zongjun Shi, Ziqiang Yang\",\"doi\":\"10.1109/PIERS.2017.8261714\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We have designed a switchable ultrathin THz linearly and circularly reflective polarization converter (RPC) by inserting phase-change material, vanadium dioxide (VO2), into a chiral metasurface (CM). By thermally controlling of the VO2 phase transition, over 99.1% 90° linear polarization (LP) conversion modulation depth and dual-band linear to circular polarization (CP) conversion with ellipticity close to 1 have been obtained. These excellent properties make the composite chiral metamaterials particularly suitable for designing tunable polarization rotating devices, which can be widely used in detection, sensing and communications.\",\"PeriodicalId\":387984,\"journal\":{\"name\":\"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)\",\"volume\":\"120 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-05-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PIERS.2017.8261714\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIERS.2017.8261714","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Switchable terahertz polarization conversion via phase-change metasurface
We have designed a switchable ultrathin THz linearly and circularly reflective polarization converter (RPC) by inserting phase-change material, vanadium dioxide (VO2), into a chiral metasurface (CM). By thermally controlling of the VO2 phase transition, over 99.1% 90° linear polarization (LP) conversion modulation depth and dual-band linear to circular polarization (CP) conversion with ellipticity close to 1 have been obtained. These excellent properties make the composite chiral metamaterials particularly suitable for designing tunable polarization rotating devices, which can be widely used in detection, sensing and communications.
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