兰州大学机构库 >物理科学与技术学院
Graphene plasmonics for tunable terahertz metamaterials
Ju, L; Geng, BS(耿柏松); Horng, J; Girit, C; Martin, M; Hao, Z; Bechtel, HA; Liang, XG; Zettl, A; Shen, YR; Wang, F; Wang, F (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
Indexed BySCIE ; PubMed ; MEDLINE ; ESI
ESI NOTE2017-07-19;Highly Cited Papers
2011-09
Source PublicationNATURE NANOTECHNOLOGY
Volume6Issue:10Pages:630-634
PublisherNATURE PUBLISHING GROUP
Publication PlaceLONDON
AbstractPlasmons describe collective oscillations of electrons. They have a fundamental role in the dynamic responses of electron systems and form the basis of research into optical metamaterials(1-3). Plasmons of two-dimensional massless electrons, as present in graphene, show unusual behaviour(4-7) that enables new tunable plasmonic metamaterials(8-10) and, potentially, optoelectronic applications in the terahertz frequency range(8,9,11,12). Here we explore plasmon excitations in engineered graphene microribbon arrays. We demonstrate that graphene plasmon resonances can be tuned over a broad terahertz frequency range by changing micro-ribbon width and in situ electrostatic doping. The ribbon width and carrier doping dependences of graphene plasmon frequency demonstrate power-law behaviour characteristic of two-dimensional massless Dirac electrons(4-6). The plasmon resonances have remarkably large oscillator strengths, resulting in prominent room-temperature optical absorption peaks. In comparison, plasmon absorption in a conventional two-dimensional electron gas was observed only at 4.2 K (refs 13,14). The results represent afirst look at light-plasmon coupling in graphene and point to potential graphene-based terahertz metamaterials.
Department
[Ju, Long;
Geng, Baisong;
Horng, Jason;
Girit, Caglar;
Zettl, Alex;
Shen, Y. Ron;
Wang, Feng] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA;
[Martin, Michael;
Hao, Zhao;
Bechtel, Hans A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source Div, Berkeley, CA 94720 USA...更多
Subject AreaScience & Technology - Other Topics ; Materials Science
Project NumberOffice of Naval Research MURI [N00014-09-1066] ; Office of Basic Energy Sciences, US Department of Energy [DE-AC02-05CH11231] ; William Packard fellowship ; Hellman family fellowship ; Lam fellowship
Funding Project美国能源部项目
Funding OrganizationUS DOE
DOI10.1038/NNANO.2011.146
ISSN1748-3387
SubtypeArticle
Language英语
WOS IDWOS:000295923800010
PMID 21892164
First Inst
Citation statistics
Cited Times:1511[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/105388
Collection物理科学与技术学院
Corresponding AuthorWang, F (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
Recommended Citation
GB/T 7714
Ju, L,Geng, BS,Horng, J,et al. Graphene plasmonics for tunable terahertz metamaterials[J]. NATURE NANOTECHNOLOGY,2011,6(10):630-634.
APA Ju, L.,Geng, BS.,Horng, J.,Girit, C.,Martin, M.,...&Wang, F .(2011).Graphene plasmonics for tunable terahertz metamaterials.NATURE NANOTECHNOLOGY,6(10),630-634.
MLA Ju, L,et al."Graphene plasmonics for tunable terahertz metamaterials".NATURE NANOTECHNOLOGY 6.10(2011):630-634.
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