Second harmonic generation in defective hexagonal boron nitride

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dc.creatorRenan Souza Cunha
dc.creatorAlisson Ronieri Cadore
dc.creatorSergio Luís Lima de Moraes Ramos
dc.creatorKenji Watanabe
dc.creatorTakashi Taniguchi
dc.creatorSejeong Kim
dc.creatorAlexander S. Solntsev
dc.creatorIgor Aharonovich
dc.creatorLeandro Malard Moreira
dc.date.accessioned2025-02-24T18:57:37Z
dc.date.accessioned2025-09-09T01:23:00Z
dc.date.available2025-02-24T18:57:37Z
dc.date.issued2020
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.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
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/10.1088/1361-648X/ab6cbf
dc.identifier.issn1361-648X
dc.identifier.urihttps://hdl.handle.net/1843/80373
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Physics: Condensed Matter
dc.rightsAcesso Restrito
dc.subjectÓptica não-linear
dc.subjectNitreto de boro
dc.subject.other2D materials
dc.subject.otherNonlinear optics
dc.subject.otherDefects
dc.titleSecond harmonic generation in defective hexagonal boron nitride
dc.typeArtigo de periódico
local.citation.epage6
local.citation.issue19
local.citation.spage1
local.citation.volume32
local.description.resumoDetermining the role of defects in materials can be an important task both for the fundamental understanding of their influence on material properties and for future applications. In this work, we studied the influence of defects on the second harmonic generation (SHG) in hexagonal boron nitride (h-BN). We characterized the sample by photoluminescence imaging and spectroscopy, showing strong and sharp photoluminescence emission at visible range from h-BN flakes due to single defect states. By doing second harmonic imaging, we found strong emission from the h-BN flakes that correlates spatially with the photoluminescence imaging. By doing polarization-resolved SHG, we found deviations from the expected polarization pattern in pristine h-BN samples. We also characterized the nonlinear optical susceptibility of h-BN with defects with a value of one order of magnitude larger than for pristine h-BN, which highlights the role of defects in the efficiency of SHG. Therefore defect engineering could be used as a potential tool for nonlinear optical signal enhancement.
local.identifier.orcidhttps://orcid.org/0000-0001-8830-8955
local.identifier.orcidhttps://orcid.org/0000-0003-1081-0915
local.identifier.orcidhttps://orcid.org/0000-0001-7056-0722
local.identifier.orcidhttps://orcid.org/0000-0003-3701-8119
local.identifier.orcidhttps://orcid.org/0000-0002-1467-3105
local.identifier.orcidhttps://orcid.org/0000-0001-9836-3608
local.identifier.orcidhttps://orcid.org/0000-0003-4981-9730
local.identifier.orcidhttps://orcid.org/0000-0003-4304-3935
local.identifier.orcidhttps://orcid.org/0000-0003-4207-9653
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://iopscience.iop.org/article/10.1088/1361-648X/ab6cbf

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