Unveiling the plasma wave in the channel of graphene field-effect transistor

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorSoltani, A.en_US
dc.contributor.authorKuschewski, F.en_US
dc.contributor.authorBonmann, M.en_US
dc.contributor.authorGeneralov, A.en_US
dc.contributor.authorVorobiev, A.en_US
dc.contributor.authorLudwig, F.en_US
dc.contributor.authorWiecha, M.en_US
dc.contributor.authorCibiraite, D.en_US
dc.contributor.authorWalla, F.en_US
dc.contributor.authorKehr, S. C.en_US
dc.contributor.authorEng, L. M.en_US
dc.contributor.authorStake, J.en_US
dc.contributor.authorRoskos, H. G.en_US
dc.contributor.departmentGoethe University Frankfurten_US
dc.contributor.departmentTechnische Universität Dresdenen_US
dc.contributor.departmentChalmers University of Technologyen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen_US
dc.date.accessioned2020-01-02T14:10:37Z
dc.date.available2020-01-02T14:10:37Z
dc.date.issued2019-09-01en_US
dc.description.abstractCoupling an electromagnetic wave at GHz to THz frequencies into the channel of a graphene field-effect transistor (GFET) provokes collective charge carrier oscillations of the two-dimensional electron gas (2DEG) known as plasma waves. Here, we report the very first experimental and direct mapping of the electric field distribution in a gated GFET at nanometer length scales using scattering-type scanning near-field microscopy (s-SNOM) at 2 THz. Based on the experimental results we deduce the plasma wave velocity for different gate bias voltages, which is in good agreement with the theoretical prediction.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationSoltani , A , Kuschewski , F , Bonmann , M , Generalov , A , Vorobiev , A , Ludwig , F , Wiecha , M , Cibiraite , D , Walla , F , Kehr , S C , Eng , L M , Stake , J & Roskos , H G 2019 , Unveiling the plasma wave in the channel of graphene field-effect transistor . in IRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Waves . , 8873874 , International Conference on Infrared, Millimeter, and Terahertz Waves , IEEE , International Conference on Infrared, Millimeter, and Terahertz Waves , Paris , France , 01/09/2019 . https://doi.org/10.1109/IRMMW-THz.2019.8873874en
dc.identifier.doi10.1109/IRMMW-THz.2019.8873874en_US
dc.identifier.isbn9781538682852
dc.identifier.issn2162-2027
dc.identifier.issn2162-2035
dc.identifier.otherPURE UUID: d9273ee9-e2cc-40c6-81b6-06454c49f59aen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/d9273ee9-e2cc-40c6-81b6-06454c49f59aen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85074728346&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/38759065/ELEC_Soltani_Unveiling_the_plasma.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/42247
dc.identifier.urnURN:NBN:fi:aalto-202001021358
dc.language.isoenen
dc.relation.ispartofInternational Conference on Infrared, Millimeter, and Terahertz Wavesen
dc.relation.ispartofseriesIRMMW-THz 2019 - 44th International Conference on Infrared, Millimeter, and Terahertz Wavesen
dc.relation.ispartofseriesInternational Conference on Infrared, Millimeter, and Terahertz Wavesen
dc.rightsopenAccessen
dc.titleUnveiling the plasma wave in the channel of graphene field-effect transistoren
dc.typeConference article in proceedingsfi
dc.type.versionacceptedVersion
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