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dc.contributor.authorHu, Hao
dc.contributor.authorGao, Dongliang
dc.contributor.authorLin, Xiao
dc.contributor.authorHou, Songyan
dc.contributor.authorZhang, Baile
dc.contributor.authorWang, Qi Jie
dc.contributor.authorLuo, Yu
dc.date.accessioned2021-04-02T19:51:54Z
dc.date.available2021-04-02T19:51:54Z
dc.date.issued2020-09
dc.identifier.citationHu, H., Gao, D., Lin, X., Hou, S., Zhang, B., Wang, Q. J., & Luo, Y. (2020). Directing Cherenkov photons with spatial nonlocality. Nanophotonics, 9(10), 3435-3442.
dc.identifier.issn2192-8606
dc.identifier.doi10.1515/nanoph-2020-0135
dc.identifier.urihttp://hdl.handle.net/10150/657394
dc.description.abstractCherenkov radiation in natural transparent materials is generally forward-propagating, owing to the positive group index of radiation modes. While negative-index metamaterials enable reversed Cherenkov radiation, the forward photon emission from a swift charged particle is prohibited. In this work, we theoretically investigate emission behaviours of a swift charged particle in the nanometallic layered structure. Our results show that Cherenkov photons are significantly enhanced by longitudinal plasmon modes resulting from the spatial nonlocality in metamaterials. More importantly, longitudinal Cherenkov photons can be directed either forward or backward, stringently depending on the particle velocity. The enhanced flexibility to route Cherenkov photons holds promise for many practical applications of Cherenkov radiation, such as novel free-electron radiation sources and new types of Cherenkov detectors.
dc.language.isoen
dc.publisherWALTER DE GRUYTER GMBH
dc.rights© 2020 Hao Hu et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCherenkov radiation
dc.subjectlight-matter interaction
dc.subjectmetamaterials
dc.subjectplasmonics
dc.subjectspatial nonlocality
dc.titleDirecting Cherenkov photons with spatial nonlocality
dc.typeArticle
dc.typetext
dc.identifier.eissn2192-8614
dc.contributor.departmentUniv Arizona, James C Wyant Coll Opt Sci
dc.identifier.journalNANOPHOTONICS
dc.description.noteOpen access article
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleNANOPHOTONICS
refterms.dateFOA2021-04-02T19:51:54Z


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© 2020 Hao Hu et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License.
Except where otherwise noted, this item's license is described as © 2020 Hao Hu et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License.