Drude relaxation rate in grained gold nanoantennas

Kuo-Ping Chen, Vladimir P. Drachev, Joshua D. Borneman, Alexander V. Kildishev, Vladimir M. Shalaev

研究成果: Article同行評審

139 引文 斯高帕斯(Scopus)

摘要

The effect of grain boundaries on the electron relaxation rate is significant even for large area noble metal films and more so for plasmonic nanostructures. Optical spectroscopy and X-ray diffraction show a substantial improvement in plasmon resonance quality for square particle nanoantennas after annealing due to an enlarged grain size from 22 to 40 nm and improved grain boundaries described by the electron reflection coefficient. The electron relaxation rate due to the grains is shown to decrease by a factor of 3.2.

原文English
頁(從 - 到)916-922
頁數7
期刊Nano Letters
10
發行號3
DOIs
出版狀態Published - 10 三月 2010

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