Study of the interaction between light and nanoantennas in tip-enhanced Raman spectroscopy

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dc.creatorHudson Luiz Silva de Miranda
dc.creatorCassiano Rabelo e Silva
dc.creatorThiago de Lourenço e Vasconcelos
dc.creatorLuiz Gustavo de Oliveira Lopes Cançado
dc.creatorAdo Jorio de Vasconcelos
dc.date.accessioned2022-07-28T15:31:02Z
dc.date.accessioned2025-09-09T01:03:41Z
dc.date.available2022-07-28T15:31:02Z
dc.date.issued2019
dc.identifier.doihttps://doi.org/10.1109/INSCIT.2019.8868513
dc.identifier.isbn978-1-7281-2109-3
dc.identifier.urihttps://hdl.handle.net/1843/43751
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofInternational Symposium on Instrumentation Systems, Circuits and Transducers - INSCIT
dc.rightsAcesso Restrito
dc.subjectEspectroscopia de Raman
dc.subjectMicroscopia ótica
dc.subject.otherTip-enhanced Raman spectroscopy
dc.subject.otherNanoantenna
dc.subject.otherOptical microscopy
dc.subject.otherPoint spread function
dc.titleStudy of the interaction between light and nanoantennas in tip-enhanced Raman spectroscopy
dc.typeArtigo de evento
local.citation.epage5
local.citation.issue4
local.citation.spage1
local.description.resumoThe interaction of light with nanometric metallic structures - nanoantennas - is of particular interest for material analysis techniques such as Tip Enhanced Near-Field Optical Microscopy (TENOM) and, specifically, Tip Enhanced Raman Spectroscopy (TERS). In these scenarios, the nanoantenna’s response to an excitation provided by a tightly focused laser beam is essential in order to qualify the system’s lateral resolution and signal-to-noise ratio. This work proposes an apparatus that enables the study of the nanoantenna’s response in the focal region of light provided by a high numerical aperture optical system. The apparatus is validated by measuring the Raman scattering intensity distribution around the focal region under different conditions, enabling the precise characterization of the electromagnetic field distribution around the focal region, providing informations regarding alignment tolerance, optical signal enhancement and optical system’s Point Spread Function (PSF).
local.identifier.orcidhttps://orcid.org/0000-0002-9946-5224
local.identifier.orcidhttps://orcid.org/0000-0003-0488-2242
local.identifier.orcidhttps://orcid.org/0000-0003-0195-444X
local.identifier.orcidhttps://orcid.org/0000-0003-0816-0888
local.identifier.orcidhttps://orcid.org/0000-0002-5978-2735
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://ieeexplore.ieee.org/document/8868513/authors

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