Probing Polaritons in 2D Materials with Synchrotron Infrared Nanospectroscopy

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dc.contributor.authorBarcelos I.D.
dc.contributor.authorBechtel H.A.
dc.contributor.authorde Matos C.J.S.
dc.contributor.authorBahamon D.A.
dc.contributor.authorKaestner B.
dc.contributor.authorMaia F.C.B.
dc.contributor.authorFreitas R.O.
dc.date.accessioned2024-03-12T23:48:44Z
dc.date.available2024-03-12T23:48:44Z
dc.date.issued2020
dc.description.abstract© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimPolaritons, which are quasiparticles composed of a photon coupled to an electric or magnetic dipole, are a major focus in nanophotonic research of van der Waals (vdW) crystals and their derived 2D materials. For the variety of existing vdW materials, polaritons can be active in a broad range of the electromagnetic spectrum (meVs to eVs) and exhibit momenta much higher than the corresponding free-space radiation. Hence, the use of high momentum broadband sources or probes is imperative to excite those quasiparticles and measure the frequency-momentum dispersion relations, which provide insights into polariton dynamics. Synchrotron infrared nanospectroscopy (SINS) is a technique that combines the nanoscale spatial resolution of scattering-type scanning near-field optical microscopy with ultrabroadband synchrotron infrared radiation, making it highly suitable to probe and characterize a variety of vdW polaritons. Here, the advances enabled by SINS on the study of key photonic attributes of far- and mid-infrared plasmon- and phonon-polaritons in vdW and 2D crystals are reviewed. In that context the SINS technique is comprehensively described and it is demonstrated how fundamental polaritonic properties are retrieved for a range of atomically thin systems including hBN, MoS2, graphene and 2D heterostructures.
dc.description.issuenumber5
dc.description.volume8
dc.identifier.doi10.1002/adom.201901091
dc.identifier.issn2195-1071
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35022
dc.relation.ispartofAdvanced Optical Materials
dc.rightsAcesso Aberto
dc.subject.otherlanguage2D materials
dc.subject.otherlanguagefar-infrared SINS
dc.subject.otherlanguagegraphene
dc.subject.otherlanguagehexagonal boron nitride
dc.subject.otherlanguageinfrared synchrotron nanospectroscopy
dc.subject.otherlanguagepolaritons
dc.subject.otherlanguages-SNOM
dc.titleProbing Polaritons in 2D Materials with Synchrotron Infrared Nanospectroscopy
dc.typeArtigo de revisão
local.scopus.citations25
local.scopus.eid2-s2.0-85076348221
local.scopus.subjectDispersion relations
local.scopus.subjectElectromagnetic spectra
local.scopus.subjectFar infrared
local.scopus.subjectFree space radiation
local.scopus.subjectHexagonal boron nitride
local.scopus.subjectNanoscale spatial resolution
local.scopus.subjectPolaritons
local.scopus.subjectSynchrotron infrared radiation
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85076348221&origin=inward
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