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Article: Bimetallic structure fabricated by laser interference lithography for tuning surface plasmon resonance

TitleBimetallic structure fabricated by laser interference lithography for tuning surface plasmon resonance
Authors
Issue Date2008
Citation
Optics Express, 2008, v. 16, n. 14, p. 10701-10709 How to Cite?
AbstractTuning of surface plasmon resonance by gold and silver bimetallic thin film and bimetallic dot array is investigated. Laser interference lithography is applied to fabricate the nanostructures. A bimetallic dot structure is obtained by a lift-off procedure after gold and silver thin film deposition by an electron beam evaporator. Surface plasmon behaviors of these films and nanostructures are studied using UV-Vis spectroscopy. It is observed that for gold thin film on quartz substrate, the optical spectral peak is blue shifted when a silver thin film is coated over it. Compared to the plasmon band in single metal gold dot array, the bimetallic nanodot array shows a similar blue shift in its spectral peak. These shifts are both attributed to the interaction between gold and silver atoms. Electromagnetic interaction between gold and silver nanostructures is discussed using a simplified spring model. © 2008 Optical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/219582

 

DC FieldValueLanguage
dc.contributor.authorLiu, C. H.-
dc.contributor.authorHong, M. H.-
dc.contributor.authorCheung, H. W.-
dc.contributor.authorZhang, F.-
dc.contributor.authorHuang, Z. Q.-
dc.contributor.authorTan, L. S.-
dc.contributor.authorHor, T. S A-
dc.date.accessioned2015-09-23T02:57:27Z-
dc.date.available2015-09-23T02:57:27Z-
dc.date.issued2008-
dc.identifier.citationOptics Express, 2008, v. 16, n. 14, p. 10701-10709-
dc.identifier.urihttp://hdl.handle.net/10722/219582-
dc.description.abstractTuning of surface plasmon resonance by gold and silver bimetallic thin film and bimetallic dot array is investigated. Laser interference lithography is applied to fabricate the nanostructures. A bimetallic dot structure is obtained by a lift-off procedure after gold and silver thin film deposition by an electron beam evaporator. Surface plasmon behaviors of these films and nanostructures are studied using UV-Vis spectroscopy. It is observed that for gold thin film on quartz substrate, the optical spectral peak is blue shifted when a silver thin film is coated over it. Compared to the plasmon band in single metal gold dot array, the bimetallic nanodot array shows a similar blue shift in its spectral peak. These shifts are both attributed to the interaction between gold and silver atoms. Electromagnetic interaction between gold and silver nanostructures is discussed using a simplified spring model. © 2008 Optical Society of America.-
dc.languageeng-
dc.relation.ispartofOptics Express-
dc.titleBimetallic structure fabricated by laser interference lithography for tuning surface plasmon resonance-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1364/OE.16.010701-
dc.identifier.pmid18607486-
dc.identifier.scopuseid_2-s2.0-47249109405-
dc.identifier.volume16-
dc.identifier.issue14-
dc.identifier.spage10701-
dc.identifier.epage10709-
dc.identifier.eissn1094-4087-

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