Regensburg 2019 – scientific programme

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O: Fachverband Oberflächenphysik

O 76: Plasmonics & Nanooptics V: Nanostructures and Nanoantennae

O 76.7: Talk

Thursday, April 4, 2019, 12:00–12:15, H8

Visible light operation of a single-crystalline silver plasmonic nanocircuit — •Christian Schörner, Subhasis Adhikari, and Markus Lippitz — University of Bayreuth, Germany

The miniaturization of optical devices is of great importance for future ultrafast integrated nano-optical circuitry. High quality plasmonic nanostructures, such as nano-antennas, nano-resonators and waveguides, need to be fabricated by focused-ion beam milling of single-crystalline metal flakes or films. However, for waveguide applications, gold limits the operation wavelength to the infrared spectral range. Here, we demonstrate multimode operation of a silver plasmonic two-wire transmission line in the visible range. We further remotely excite 20nm fluorescent beads along the waveguide and shift excitation centers by applying different superpositions of the available waveguide modes.