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Article: Three-dimensional cavity nanoantenna coupled plasmonic nanodots for ultrahigh and uniform surface-enhanced Raman scattering over large area

TitleThree-dimensional cavity nanoantenna coupled plasmonic nanodots for ultrahigh and uniform surface-enhanced Raman scattering over large area
Authors
Issue Date2011
PublisherOptical Society of America. The Journal's web site is located at http://www.opticsexpress.org
Citation
Optics Express, 2011, v. 19 n. 5, p. 3925-3936 How to Cite?
AbstractWe propose and demonstrate a new SERS substrate architecture that couples a dense three-dimensional (3-D) cavity nanoantenna array, through nano-gaps, with dense plasmonic nanodots; and a new nanofabrication that combines nanoimprint, guided self-assembly and self-alignment and has fabricated the architecture precisely, simply, inexpensively and over large area (4-inch wafer). We experimentally achieved not only high area-average SERS enhancement (1.2 × 10 9) but also excellent uniformity (22.4% variation) at the same time over the entire large-area sample by measuring 90 points with a regular mapping distance. The best uniformity achieved is 15% variation over 1.6 mm by 1.6 mm area at slightly lower enhancement factor and is independent of the excitation laser probe size, which had an area varying from ∼1 to 10,000 μm 2. © 2011 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/145470
ISSN
2015 Impact Factor: 3.148
2015 SCImago Journal Rankings: 2.186
ISI Accession Number ID
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)
Funding Information:

W. D. L designed and made the first D2PA sample. W. D. L and F. D contributed to D2PA substrates fabrication and SERS measurements. S. Y. C and W. D. L contributed to the SERS design strategy. J.H contributed to simulation. W. D. L, F. D. J.H. and S. Y. C. contributed to data analysis and manuscript preparation. S. Y. C. designed and directed the research, led the formation and development of the new SERS design strategy, and performed majority writing in the manuscript. The authors thank Dr. Xing Wang for helping on preparation of BPE solutions and other useful discussion, Dr. Zengli Fu for discussion on molecule adsorption, Professor Stephen Lyon for discussing the naming of the D2PA, Dr. Orest J. Glembocki and Dr. Joshua Caldwell of Naval Research Laboratory and Prof. Szymon Suckewer, Dr. Hui Xia and Mr. Chao Lu of Princeton University for Raman measurements of preliminary tests of our early D2PA samples ( Note all the data presents here are measured in our group), and Dr. Weihua Zhang for discussion and comments on the manuscript. We thank the Defense Advanced Research Projects Agency (DARPA) (Managed by Dr. Dennis Polla) for its partial support.

References

 

DC FieldValueLanguage
dc.contributor.authorLi, WDen_HK
dc.contributor.authorDing, Fen_HK
dc.contributor.authorHu, Jen_HK
dc.contributor.authorChou, SYen_HK
dc.date.accessioned2012-02-23T12:10:52Z-
dc.date.available2012-02-23T12:10:52Z-
dc.date.issued2011en_HK
dc.identifier.citationOptics Express, 2011, v. 19 n. 5, p. 3925-3936en_HK
dc.identifier.issn1094-4087en_HK
dc.identifier.urihttp://hdl.handle.net/10722/145470-
dc.description.abstractWe propose and demonstrate a new SERS substrate architecture that couples a dense three-dimensional (3-D) cavity nanoantenna array, through nano-gaps, with dense plasmonic nanodots; and a new nanofabrication that combines nanoimprint, guided self-assembly and self-alignment and has fabricated the architecture precisely, simply, inexpensively and over large area (4-inch wafer). We experimentally achieved not only high area-average SERS enhancement (1.2 × 10 9) but also excellent uniformity (22.4% variation) at the same time over the entire large-area sample by measuring 90 points with a regular mapping distance. The best uniformity achieved is 15% variation over 1.6 mm by 1.6 mm area at slightly lower enhancement factor and is independent of the excitation laser probe size, which had an area varying from ∼1 to 10,000 μm 2. © 2011 Optical Society of America.en_HK
dc.languageengen_US
dc.publisherOptical Society of America. The Journal's web site is located at http://www.opticsexpress.orgen_HK
dc.relation.ispartofOptics Expressen_HK
dc.titleThree-dimensional cavity nanoantenna coupled plasmonic nanodots for ultrahigh and uniform surface-enhanced Raman scattering over large areaen_HK
dc.typeArticleen_HK
dc.identifier.emailLi, WD:liwd@hku.hken_HK
dc.identifier.authorityLi, WD=rp01581en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1364/OE.19.003925en_HK
dc.identifier.scopuseid_2-s2.0-79952125781en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79952125781&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue5en_HK
dc.identifier.spage3925en_HK
dc.identifier.epage3936en_HK
dc.identifier.eissn1094-4087-
dc.identifier.isiWOS:000288870300012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, WD=35181575900en_HK
dc.identifier.scopusauthoridDing, F=36570270200en_HK
dc.identifier.scopusauthoridHu, J=37034162800en_HK
dc.identifier.scopusauthoridChou, SY=7401538612en_HK

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