{"title":"Electron Beam-Induced Airy Beam-Like THz Radiation from Graded Metallic Grating","authors":"T. Matsui, R. Yoshida, Kazuki Omura","doi":"10.1109/IRMMW-THZ.2018.8510061","DOIUrl":null,"url":null,"abstract":"We have numerically analyzed an electron beam -induced Airy beam-like terahertz (THz) radiation from graded metallic grating structures with graded groove spacing (GGS) based on a simplified particle-in-cell finite-difference time-domain method. Airy beam-like directional THz beams are obtained from GGSs designed to give appropriate phase delay in each scattered radiation from each grooves. Our findings may open the way for a development of novel THz radiation source based on the wide variety of metallic grating structures.","PeriodicalId":6653,"journal":{"name":"2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)","volume":"40 1","pages":"1-2"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IRMMW-THZ.2018.8510061","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
We have numerically analyzed an electron beam -induced Airy beam-like terahertz (THz) radiation from graded metallic grating structures with graded groove spacing (GGS) based on a simplified particle-in-cell finite-difference time-domain method. Airy beam-like directional THz beams are obtained from GGSs designed to give appropriate phase delay in each scattered radiation from each grooves. Our findings may open the way for a development of novel THz radiation source based on the wide variety of metallic grating structures.
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