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Article: Compressing surface plasmons for nano-scale optical focusing

TitleCompressing surface plasmons for nano-scale optical focusing
Authors
Issue Date2009
Citation
Optics Express, 2009, v. 17, n. 9, p. 7519-7524 How to Cite?
AbstractA major challenge in optics is how to deliver and concentrate light from the micron-scale into the nano-scale. Light can not be guided, by conventional mechanisms, with optical beam sizes significantly smaller than its wavelength due to the diffraction limit. On the other hand, focusing of light into very small volumes beyond the diffraction limit can be achieved by exploiting the wavelength scalability of surface plasmon polaritons. By slowing down an optical wave and shrinking its wavelength during its propagation, optical energy can be compressed and concentrated down to nanometer scale, namely, nanofocusing. Here, we experimentally demonstrate and quantitatively measure the nanofocusing of surface plasmon polaritons in tapered metallic V-grooves down to the deep sub- wavelength scale - ∼λ/40 at wavelength of 1.5 micron - with almost 50% power efficiency. © 2009 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/257000
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChoi, Hyeunseok-
dc.contributor.authorPile, David F.P.-
dc.contributor.authorNam, Sunghyun-
dc.contributor.authorBartal, Guy-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:58:33Z-
dc.date.available2018-07-24T08:58:33Z-
dc.date.issued2009-
dc.identifier.citationOptics Express, 2009, v. 17, n. 9, p. 7519-7524-
dc.identifier.urihttp://hdl.handle.net/10722/257000-
dc.description.abstractA major challenge in optics is how to deliver and concentrate light from the micron-scale into the nano-scale. Light can not be guided, by conventional mechanisms, with optical beam sizes significantly smaller than its wavelength due to the diffraction limit. On the other hand, focusing of light into very small volumes beyond the diffraction limit can be achieved by exploiting the wavelength scalability of surface plasmon polaritons. By slowing down an optical wave and shrinking its wavelength during its propagation, optical energy can be compressed and concentrated down to nanometer scale, namely, nanofocusing. Here, we experimentally demonstrate and quantitatively measure the nanofocusing of surface plasmon polaritons in tapered metallic V-grooves down to the deep sub- wavelength scale - ∼λ/40 at wavelength of 1.5 micron - with almost 50% power efficiency. © 2009 Optical Society of America.-
dc.languageeng-
dc.relation.ispartofOptics Express-
dc.titleCompressing surface plasmons for nano-scale optical focusing-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1364/OE.17.007519-
dc.identifier.pmid19399129-
dc.identifier.scopuseid_2-s2.0-66649089843-
dc.identifier.volume17-
dc.identifier.issue9-
dc.identifier.spage7519-
dc.identifier.epage7524-
dc.identifier.eissn1094-4087-
dc.identifier.isiWOS:000266381700066-

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