Monolayer rigid arrays of cavity-controllable metallic mesoparticles: Electrochemical preparation and light transmission resonances

Zhuo Chen; Han Dong; Jian Pan; Peng Zhan; Chaojun Tang; Zhen-Lin Wang
February 2010
Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p051904
Academic Journal
We report an efficient and robust electrochemical deposition method to fabricate large-scale two-dimensional rigid arrays of metal colloids with a precise control of the particle morphology by monitoring metal growth that is confined within a templated organic porous mold. Light transmission resonances through the metallic periodic microstructures are observed and the resonance wavelengths are found to depend on the morphology of the scattering elements. Further numerical simulations confirm these transmission resonances and reveal that they are attributed to the excitations of localized or propagating surface plasmon modes supported by the specific structures. The present method of tailoring metallic microstructures could find applications in plasmonics.


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