Regensburg 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

O: Fachverband Oberflächenphysik

O 23: Plasmonics and Nanooptics: Light-Matter Interaction, Spectroscopy

O 23.15: Poster

Montag, 7. März 2016, 18:15–20:30, Poster E

Tip modified spectroscopy of nanowires — •Jonas Albert and Markus Lippitz — Universität Bayreuth

We are investigating 1D structures such as CdSe nanowires and wire-like molecular aggregates with an apertureless Scanning Near-field Optical Microscope (aSNOM). The optical fields at the near-field probe, a metal coated AFM-tip, are confined in a space much smaller than the wavelength and therefore showing a high field gradient on the nanometer scale. Utilising this near-field interaction we aim for modification of fluorescence emission by the presence of the near-field probe. Next to simple quenching we expect the optical field gradients to enhance dipole forbidden higher-order transitions.