Improved dielectric functions in metallic films obtained via template stripping
- Improved dielectric functions in metallic films obtained via template stripping
- 박종혁; Prashant Nagpal; Sang-Hyun Oh; David J. Norris
- Issue Date
- Applied physics letters
- VOL 100, NO 8-081105-4
- We compare the dielectric functions of silver interfaces obtained via thermal evaporation with
those obtained with template stripping. Ellipsometry measurements show that the smoother
template-stripped surfaces exhibit effective dielectric functions with a more negative real component and a smaller imaginary component, implying higher conductivity and less energy loss, respectively. These results agree with the relation between dielectric function and surface
roughness derived from combining the effective-medium model and the Drude-Lorentz model. The improvement in the effective dielectric properties shows that metallic films prepared via template stripping can be favorable for applications in electronics, nanophotonics, and plasmonics.
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