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Nanopatterning and tuning of optical taper antenna apex for tip-enhanced Raman scattering performance

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dc.contributor.author Kharintsev S.
dc.contributor.author Rogov A.
dc.contributor.author Kazarian S.
dc.date.accessioned 2018-09-18T20:31:12Z
dc.date.available 2018-09-18T20:31:12Z
dc.date.issued 2013
dc.identifier.issn 0034-6748
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/140721
dc.description.abstract This paper focuses on finding optimal electrochemical conditions from linear sweep voltammetry analysis for preparing highly reproducible tip-enhanced Raman scattering (TERS) conical gold tips with dc-pulsed voltage etching. Special attention is given to the reproducibility of tip apex shapes with different etchant mixtures. We show that the fractional Brownian motion model enables a mathematical description of the decaying current kinetics during the whole etching process up to the cutoff event. Further progress in preparation of highly reproducible smooth and sharp tip apexes is related to the effect of an additive, such as isopropanol, to aqueous acids. A finite-difference time-domain method based near-field analysis provides evidence that TERS performance depends critically on tip orientation relative to a highly focused laser beam. A TERS based criterion for recognizing gold tips able to couple/decouple optical near- and far-fields is proposed. © 2013 AIP Publishing LLC.
dc.relation.ispartofseries Review of Scientific Instruments
dc.title Nanopatterning and tuning of optical taper antenna apex for tip-enhanced Raman scattering performance
dc.type Article
dc.relation.ispartofseries-issue 9
dc.relation.ispartofseries-volume 84
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00346748-2013-84-9-SID84885092231


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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