Thursday, June 20, 2013

1306.4453 (Shailesh Kumar et al.)

Propagation of plasmons in designed single crystalline silver

Shailesh Kumar, Ying-Wei Lu, Alexander Huck, Ulrik L. Andersen
We demonstrate propagation of plasmons in single crystalline silver nanostructures fabricated using a combination of a bottom-up and a top-down approach. Silver nanoplates of thickness around 65 nm and a surface area of about 100 \mu m^2 are made using a wet chemical method. Silver nanotips and nanowires are then sculptured by focused ion beam milling. The plasmons are excited by using the fluorescence from the redeposited silver clusters during the milling process. Propagation of plasmons in the nanowires is observed in the visible spectral region. We also observe a cavity effect by measuring the emission spectrum from the distal wire end.
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