Anomalous non-linear optical response of graphene near phonon resonances

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dc.creatorLucas Lafetá Prates da Fonseca
dc.creatorAlisson Ronieri Cadore
dc.creatorThiago Grasiano Mendes de Sá
dc.creatorKenji Watanabe
dc.creatorTakashi Taniguchi
dc.creatorLeonardo Cristiano Campos
dc.creatorAdo Jorio de Vasconcelos
dc.creatorLeandro Malard Moreira
dc.date.accessioned2022-08-08T11:42:42Z
dc.date.accessioned2025-09-09T01:06:21Z
dc.date.available2022-08-08T11:42:42Z
dc.date.issued2017-05-25
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetos
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.identifier.doihttps://doi.org/10.1021/acs.nanolett.7b00329
dc.identifier.issn15306992
dc.identifier.urihttps://hdl.handle.net/1843/44018
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofNano Letters
dc.rightsAcesso Restrito
dc.subjectÓtica não-linear
dc.subjectGrafeno
dc.subject.otherNonlinear optics
dc.subject.otherGraphene
dc.subject.otherHexagonal boron nitride
dc.subject.otherFour-wave mixing
dc.titleAnomalous non-linear optical response of graphene near phonon resonances
dc.typeArtigo de periódico
local.citation.epage3451
local.citation.issue6
local.citation.spage3447
local.citation.volume17
local.description.resumoIn this work we probe the third-order nonlinear optical property of graphene and hexagonal boron nitride and their heterostructure by the use of coherent anti-Stokes Raman spectroscopy. When the energy difference of the two input fields matches the phonon energy, the anti-Stokes emission intensity is enhanced in h-BN, as usually expected, while for graphene an anomalous decrease is observed. This behavior can be understood in terms of a coupling between the electronic continuum and a discrete phonon state. We have also measured a graphene/h-BN heterostructure and demonstrate that the anomalous effect in graphene dominates the heterostructure nonlinear optical response.
local.identifier.orcidhttps://orcid.org/0000-0002-1594-9142
local.identifier.orcidhttps://orcid.org/0000-0003-1081-0915
local.identifier.orcidhttps://orcid.org/0000-0002-5027-462X
local.identifier.orcidhttps://orcid.org/0000-0003-3701-8119
local.identifier.orcidhttps://orcid.org/0000-0002-1467-3105
local.identifier.orcidhttps://orcid.org/0000-0001-6792-7554
local.identifier.orcidhttps://orcid.org/0000-0002-5978-2735
local.identifier.orcidhttps://orcid.org/0000-0003-4207-9653
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/10.1021/acs.nanolett.7b00329

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