Regensburg 2007 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 12: Nanostructures at Surfaces II (Wires, Tubes)

O 12.3: Vortrag

Montag, 26. März 2007, 14:45–15:00, H36

Optical anisotropy of buried metallic nanowires — •Karsten Fleischer, Julie Jacob, Sandhya Chandola, and John F McGilp — Trinity College Dublin, School of Physics, Dublin 2, Ireland

Arrays of metallic nanowires frequently show strong optical anisotropies in the infrared due to conductance differences along and perpendicular to the main wire axis. We utilize reflectance anisotropy spectroscopy (RAS) and second harmonic generation (SHG) to investigate Ag nanowires on vicinal Si(111) surfaces and the influence of the offcut angle on the properties of the Ag wires. In a second step the Ag structures are capped with amorphous Si in order to investigate the conductivity of buried nanowires which are stable under ambient conditions.