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|Title:||Plasmonic Resonances in Nanostructured Gold/Polymer Surfaces by Colloidal Lithography|
|Authors:||GIUDICATTI Silvia; VALSESIA Andrea; MARABELLI F.; COLPO Pascal; ROSSI Francois|
|Citation:||PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE vol. 207 no. 4 p. 935-942|
|Publisher:||WILEY-V C H VERLAG GMBH|
|JRC Publication N°:||JRC58094|
|Type:||Articles in Journals|
|Abstract:||We investigate nanostructured surfaces consisting of a hexagonal lattice of polymeric pillars embedded in a gold matrix. These systems are prepared by a new fabrication technique based on plasma assisted deposition and colloidal lithography. A complete characterization of such surfaces is performed by angle resolved reflectance and transmittance measurements. Both delocalized and localized plasmonic modes can be identified: their reciprocal interplay allows to observe spectral features and to detect refractive index changes related to one of the sample interfaces by measurements performed with a light beam incident from the opposite side. This intriguing behaviour, together with ease of use and low cost of the deposition procedure, make this kind of nanostructures particularly interesting in biosensing applications.|
|JRC Institute:||Institute for Health and Consumer Protection|
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