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dc.contributor.authorHarada, Yoichi
Ukhtary, Muhammad Shoufie
Wang, Minjie
Srinivasan, Sanjay K.
Hasdeo, Eddwi H.
Nugraha, Ahmad R.T.
Noe, G. Timothy II
Sakai, Yuji
Vajtai, Robert
Ajayan, Pulickel M.
Saito, Riichiro
Kono, Junichiro
dc.date.accessioned 2017-01-30T22:36:08Z
dc.date.available 2017-01-30T22:36:08Z
dc.date.issued 2017
dc.identifier.citation Harada, Yoichi, Ukhtary, Muhammad Shoufie, Wang, Minjie, et al.. "Giant Terahertz-Wave Absorption by Monolayer Graphene in a Total Internal Reflection Geometry." ACS Photonics, 4, no. 1 (2017) American Chemical Society: 121-126. http://dx.doi.org/10.1021/acsphotonics.6b00663.
dc.identifier.urihttps://hdl.handle.net/1911/93817
dc.description.abstract We experimentally demonstrated significant enhancement of terahertz-wave absorption in monolayer graphene by simply sandwiching monolayer graphene between two dielectric media in a total internal reflection geometry. In going through this structure, the evanescent wave of the incident terahertz beam interacts with the sandwiched graphene layer multiple (up to four) times at varying incidence angles. We observed extremely large attenuation (up to ∼70% per reflection), especially for s-polarized radiation. The experimental results are quantitatively consistent with our calculations, where we modeled the experiment as an electromagnetic wave reflection process in monolayer graphene. We also derived analytical expressions for the absorptance, showing that the absorptance is proportional to the amount of Joule heating on the graphene surface induced by the terahertz radiation.
dc.language.iso eng
dc.publisher American Chemical Society
dc.rights This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society.
dc.title Giant Terahertz-Wave Absorption by Monolayer Graphene in a Total Internal Reflection Geometry
dc.type Journal article
dc.citation.journalTitle ACS Photonics
dc.subject.keywordabsorption
graphene
terahertz spectroscopy
total internal reflection
dc.citation.volumeNumber 4
dc.citation.issueNumber 1
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1021/acsphotonics.6b00663
dc.type.publication post-print
dc.citation.firstpage 121
dc.citation.lastpage 126


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