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Article: A pancake-shaped nano-aggregate for focusing surface plasmons

TitleA pancake-shaped nano-aggregate for focusing surface plasmons
Authors
KeywordsBow-tie-shaped dimers
E-field
Numerical predictions
Poggio-miller-chang-harrington-wu-tsai
Raman enhancement
Issue Date2012
PublisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp
Citation
Journal of Applied Physics, 2012, v. 111 n. 3, article no. 034308 How to Cite?
AbstractWe proposed a pancake-shaped nano-aggregate that highly focuses surface plasmons. The structure is a superposition of bowtie-shaped dimers, where surface plasmons are excited, resonated with the structure, and coupled. Surface integral equation method (Poggio-Miller-Chang-Harrington-Wu-Tsai method) is used to predict the performance of the proposed structure. It is a method which can accurately calculate the near-fields of nanoparticles. Based on the numerical prediction, the proposed structure shows an electric field (E-field) enhancement of more than 400 times, which is equivalent to a Raman enhancement factor of more than 2.5 e 10 times. It is promising for single molecule detections using surface-enhanced Raman scattering. The physics of the proposed structure are revealed. It is useful to design nanostructures for high E-field enhancement. © 2012 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/155735
ISSN
2015 Impact Factor: 2.101
2015 SCImago Journal Rankings: 0.603
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHuang, SYen_US
dc.contributor.authorChew, WCen_US
dc.contributor.authorLiu, YGen_US
dc.contributor.authorWu, BIen_US
dc.contributor.authorChoi, HWen_US
dc.date.accessioned2012-08-08T08:35:05Z-
dc.date.available2012-08-08T08:35:05Z-
dc.date.issued2012en_US
dc.identifier.citationJournal of Applied Physics, 2012, v. 111 n. 3, article no. 034308en_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://hdl.handle.net/10722/155735-
dc.description.abstractWe proposed a pancake-shaped nano-aggregate that highly focuses surface plasmons. The structure is a superposition of bowtie-shaped dimers, where surface plasmons are excited, resonated with the structure, and coupled. Surface integral equation method (Poggio-Miller-Chang-Harrington-Wu-Tsai method) is used to predict the performance of the proposed structure. It is a method which can accurately calculate the near-fields of nanoparticles. Based on the numerical prediction, the proposed structure shows an electric field (E-field) enhancement of more than 400 times, which is equivalent to a Raman enhancement factor of more than 2.5 e 10 times. It is promising for single molecule detections using surface-enhanced Raman scattering. The physics of the proposed structure are revealed. It is useful to design nanostructures for high E-field enhancement. © 2012 American Institute of Physics.en_US
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jspen_US
dc.relation.ispartofJournal of Applied Physicsen_US
dc.rightsJournal of Applied Physics. Copyright © American Institute of Physics.-
dc.rightsCopyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Journal of Applied Physics, 2012, v. 111 n. 3, article no. 034308) and may be found at (http://jap.aip.org/resource/1/japiau/v111/i3/p034308_s1).-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectBow-tie-shaped dimers-
dc.subjectE-field-
dc.subjectNumerical predictions-
dc.subjectPoggio-miller-chang-harrington-wu-tsai-
dc.subjectRaman enhancement-
dc.titleA pancake-shaped nano-aggregate for focusing surface plasmonsen_US
dc.typeArticleen_US
dc.identifier.emailHuang, SY: syhuang@hku.hken_US
dc.identifier.emailChew, WC: wcchew@hku.hk-
dc.identifier.emailChoi, HW: hwchoi@eee.hku.hk, hwchoi@hku.hk-
dc.identifier.authorityChoi, HW=rp00108en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1063/1.3681377en_US
dc.identifier.scopuseid_2-s2.0-84863142046-
dc.identifier.hkuros204466-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84857393380&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume111en_US
dc.identifier.issue3, article no. 034308en_US
dc.identifier.isiWOS:000301029800098-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChoi, HW=7404334877en_US
dc.identifier.scopusauthoridWu, BI=7403591380en_US
dc.identifier.scopusauthoridLiu, YG=55023523500en_US
dc.identifier.scopusauthoridCho Chew, W=55021819300en_US
dc.identifier.scopusauthoridYing Huang, S=55022781800en_US

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