Dresden 2014 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 37: Posters: Plasmonics, Electronic Structure and Spin-Orbit Interaction, Semiconductor and Insulator Surfaces, Nanostructures
O 37.15: Poster
Dienstag, 1. April 2014, 18:30–22:00, P2
Characterisation and Control of SPPs in silver waveguides using PEEM — •Kellie Pearce1,2, Christian Späth1, Soo Hoon Chew1,2, Sebastian Nobis1, Jürgen Schmidt1, and Ulf Kleineberg1 — 1Department of Physics, Ludwig Maximilian University of Munich, Garching, Germany — 2Max Planck Institute of Quantum Optics, Garching, Germany
Surface plasmon polaritons (SPPs) have garnered much interest because of their unique properties. They are able to travel at speeds comparable to that of light, whilst capable of being confined to dimensions much smaller than the diffraction limit. Potential applications rely on being able to fabricate, characterise and optimise SPP guiding structures.
To investigate potential waveguides, a technique is needed to observe plasmons with high spatial and temporal resolution. Photoemission microscopy (PEEM) is one such technique. Combining time-of-flight PEEM with two-photon photoemission enables plasmons and plasmon-induced hotspots to be mapped. We fabricate and examine various SPP-waveguides to determine the effect of waveguide geometry, composition, and laser polarisation on the generation, steering and focusing of SPPs in metal nano- and microstructures. Additionally we initiate first steps towards using the the carrier envelope phase of ultrashort pulses for plasmonic control.