Qingmin Wang, Cheng Lv, Yang Liu, Zhiwei Gao, Tiecheng Wang
{"title":"一种改善太赫兹波吸收的具有榫卯结构的超材料吸收器","authors":"Qingmin Wang, Cheng Lv, Yang Liu, Zhiwei Gao, Tiecheng Wang","doi":"10.1016/j.jallcom.2024.178037","DOIUrl":null,"url":null,"abstract":"Metamaterial absorbers have been reported for excellent absorption in terahertz. Based on the traditional metamaterial structure, we proposed a new design method for metamaterial absorber by introducing mortise structure. Simulations results demonstrated that the metamaterial absorbers can significantly increase the absorption and broaden the absorption bandwidth. The effective absorption bandwidth is increased from 0<!-- --> <!-- -->THz and 0.58<!-- --> <!-- -->THz to 1.52<!-- --> <!-- -->THz and 1.58<!-- --> <!-- -->THz in two selected example metamaterial absorbers. The absorption increased by 19% and 4%, respectively. And the maximum absorption is close to perfect absorption. Then a terahertz wideband metamaterial absorber is designed based on this structure by changing the number of corners in the cell pattern. The thickness is only 8.2 μm, the terahertz absorption exceeds 90% in 4.5-7.1<!-- --> <!-- -->THz. The metamaterial absorber has the characteristics of polarization insensitive and wide angle, which provides a new design method for the development of terahertz absorbers.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1 1","pages":""},"PeriodicalIF":6.3000,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A metamaterial absorber with mortise structure for improving the terahertz wave absorption\",\"authors\":\"Qingmin Wang, Cheng Lv, Yang Liu, Zhiwei Gao, Tiecheng Wang\",\"doi\":\"10.1016/j.jallcom.2024.178037\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Metamaterial absorbers have been reported for excellent absorption in terahertz. Based on the traditional metamaterial structure, we proposed a new design method for metamaterial absorber by introducing mortise structure. Simulations results demonstrated that the metamaterial absorbers can significantly increase the absorption and broaden the absorption bandwidth. The effective absorption bandwidth is increased from 0<!-- --> <!-- -->THz and 0.58<!-- --> <!-- -->THz to 1.52<!-- --> <!-- -->THz and 1.58<!-- --> <!-- -->THz in two selected example metamaterial absorbers. The absorption increased by 19% and 4%, respectively. And the maximum absorption is close to perfect absorption. Then a terahertz wideband metamaterial absorber is designed based on this structure by changing the number of corners in the cell pattern. The thickness is only 8.2 μm, the terahertz absorption exceeds 90% in 4.5-7.1<!-- --> <!-- -->THz. The metamaterial absorber has the characteristics of polarization insensitive and wide angle, which provides a new design method for the development of terahertz absorbers.\",\"PeriodicalId\":344,\"journal\":{\"name\":\"Journal of Alloys and Compounds\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2024-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Alloys and Compounds\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jallcom.2024.178037\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2024.178037","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
A metamaterial absorber with mortise structure for improving the terahertz wave absorption
Metamaterial absorbers have been reported for excellent absorption in terahertz. Based on the traditional metamaterial structure, we proposed a new design method for metamaterial absorber by introducing mortise structure. Simulations results demonstrated that the metamaterial absorbers can significantly increase the absorption and broaden the absorption bandwidth. The effective absorption bandwidth is increased from 0 THz and 0.58 THz to 1.52 THz and 1.58 THz in two selected example metamaterial absorbers. The absorption increased by 19% and 4%, respectively. And the maximum absorption is close to perfect absorption. Then a terahertz wideband metamaterial absorber is designed based on this structure by changing the number of corners in the cell pattern. The thickness is only 8.2 μm, the terahertz absorption exceeds 90% in 4.5-7.1 THz. The metamaterial absorber has the characteristics of polarization insensitive and wide angle, which provides a new design method for the development of terahertz absorbers.
期刊介绍:
The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.