Regensburg 2016 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 20: Focus: Functional Polymer Hybrids I
CPP 20.5: Vortrag
Dienstag, 8. März 2016, 10:45–11:00, H51
Approach to macroscopic functional colloidal optical metamaterials — •Tobias A.F. König1, Svetlana Santer2, and Andreas Fery1 — 1Institute of Physical Chemistry and Polymer Physics, Leibniz Institute of Polymer Research (IPF), Dresden — 22Department of Experimental Physics, Potsdam
We are interested in optical and mechanical interactions between functionalized nanoparticles and functionalized surfaces to assemble nanoparticles on the macroscopic area. Two assembly approaches will be discussed in this contribution: First, using the prevailing surfaces forces to move nanoobjects and second, using lithography free templates to assemble plasmonic nanoparticles. In the first approach, we use a plasmonically induced azobenze mass transport to move nanoparticles. This allows us to analyse the underlying plasmonic effects by changing polarization or wavelength observed at a fixed position. In the second approach, we present ensembles of surface-ordered nanoparticle arrangements, which are formed by template assisted self-assembly of monodisperse, functionalized gold nanoparticles in wrinkle-templates. Both methods are confirmed with electromagnetic simulations (FDTD) to analyse the responsible forces of the nanoimprints and to discuss the collective optical response of the assembled nanoparticles. We discuss the expansion of these approaches towards colloidal optical metamaterials and light management concepts.