Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5356140 | Applied Surface Science | 2012 | 5 Pages |
Abstract
⺠Exposure of discontinuous gold films to laser interference produces 2D and 1D patterns of round nanoparticles surrounded by non-transformed areas. ⺠The optical response of the patterns is dominated by the surface plasmon resonance of the gold nanoparticles. ⺠The accumulation of metal at some areas of the pattern is consistent with mass transport towards the lower temperature regions. ⺠The size of the nanoparticles depends on the initial effective thickness; the thicker the films the bigger the nanoparticles. ⺠Multiple laser exposures produce in alternating areas with different nanoparticle dimensions.
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Authors
R.J. Peláez, G. Baraldi, C.N. Afonso, S. Riedel, J. Boneberg, P. Leiderer,