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dc.contributor.authorAmin, Muhammad
dc.contributor.authorFarhat, Mohamed
dc.contributor.authorBagci, Hakan
dc.date.accessioned2015-08-03T10:42:24Z
dc.date.available2015-08-03T10:42:24Z
dc.date.issued2013-11-26
dc.identifier.citationAmin, M., Farhat, M., & Bağcı, H. (2013). An ultra-broadband multilayered graphene absorber. Optics Express, 21(24), 29938. doi:10.1364/oe.21.029938
dc.identifier.issn10944087
dc.identifier.doi10.1364/OE.21.029938
dc.identifier.urihttp://hdl.handle.net/10754/562552
dc.description.abstractAn ultra-broadband multilayered graphene absorber operating at terahertz (THz) frequencies is proposed. The absorber design makes use of three mechanisms: (i) The graphene layers are asymmetrically patterned to support higher order surface plasmon modes that destructively interfere with the dipolar mode and generate electromagnetically induced absorption. (ii) The patterned graphene layers biased at different gate voltages backedup with dielectric substrates are stacked on top of each other. The resulting absorber is polarization dependent but has an ultra-broadband of operation. (iii) Graphene's damping factor is increased by lowering its electron mobility to 1000cm 2=Vs. Indeed, numerical experiments demonstrate that with only three layers, bandwidth of 90% absorption can be extended upto 7THz, which is drastically larger than only few THz of bandwidth that can be achieved with existing metallic/graphene absorbers. © 2013 Optical Society of America.
dc.publisherThe Optical Society
dc.titleAn ultra-broadband multilayered graphene absorber
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputational Electromagnetics Laboratory
dc.identifier.journalOptics Express
kaust.personAmin, Muhammad
kaust.personFarhat, Mohamed
kaust.personBagci, Hakan
dc.date.published-online2013-11-26
dc.date.published-print2013-12-02


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