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BP: Fachverband Biologische Physik

BP 34: Posters: New Technologies

BP 34.6: Poster

Donnerstag, 25. März 2010, 17:15–20:00, Poster B2

Combined SERS/AFM microscopy on single gold nanoparticle clusters — •Dennis Steinigeweg, Mohammad Salehi, Magdalena Gellner, Max Schütz, and Sebastian Schlücker — Fachbereich Physik, Universität Osnabrück, Barbarastr. 7, 49069 Osnabrück

Surface-enhanced Raman scattering (SERS) is an ultrasensitive technique of Raman spectroscopy for molecules on or near metallic nanostructures that support localized surface plasmon resonances. Single noble metal nanoparticle clusters exhibit extremely high and very localized near-field enhancements in the junctions between adjacent particles ("hot spots").

We employ SERS from self-assembled organic monolayers (SAM) on the surface of single gold nanoparticle clusters for probing their optical/plasmonic properties. Atomic force microscopy (AFM) on the same objects provides the corresponding topographic information.