Publication: Research - peer-review › Journal article – Annual report year: 2010
Ultrathin adhesion layers serve a well-documented fabrication purpose while its influence on the optical properties of gold nanostructures is often neglected. Gold split-ring resonators are fabricated with two commonly used adhesion layers: titanium and indium tin oxide. When compared to all-gold reference samples, a spectral shift of the ground mode resonance is observed. For the titanium sample the spectral shift is accompanied by a resonance broadening, which is less profound for indium tin oxide. The mutual correlation between the shift and the broadening is shown to be qualitatively consistent with perturbative considerations.
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- optical fabrication, tin compounds, optical resonators, nanofabrication, titanium, spectral line broadening, nanophotonics, spectral line shift, optical materials, gold, indium compounds