Please use this identifier to cite or link to this item:

TitleProbing the ultimate plasmon confinement limits with a Van der Waals heterostructure
Author(s)Iranzo, David Alcaraz
Nanot, Sebastien
Dias, Eduardo J. C.
Epstein, Itai
Peng, Cheng
Efetov, Dmitri K.
Lundeberg, Mark B.
Parret, Romain
Osmond, Johann
Hong, Jin-Yong
Kong, Jing
Englund, Dirk R.
Peres, N. M. R.
Koppens, Frank H. L.
Issue date3-Apr-2018
PublisherAmerican Association for the Advancement of Science
Abstract(s)The ability to confine light into tiny spatial dimensions is important for applications such as microscopy, sensing and nanoscale lasers. While plasmons offer an appealing avenue to confine light, Landau damping in metals imposes a trade-off between optical field confinement and losses. We show that a graphene-insulator-metal heterostructure can overcome that trade-off, and demonstrate plasmon confinement down to the ultimate limit of the lengthscale of one atom. This is achieved by far-field excitation of plasmon modes squeezed into an atomically thin hexagonal boron nitride dielectric h-BN spacer between graphene and metal rods. A theoretical model which takes into account the non-local optical response of both graphene and metal is used to describe the results. These ultra-confined plasmonic modes, addressed with far-field light excitation, enables a route to new regimes of ultra-strong light-matter interactions.
DescriptionData and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials
AccessOpen access
Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

Files in This Item:
File Description SizeFormat 
1804.01061.pdf3,07 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID