The resputtering of gold films from nano-holes defined in a sacrificial PMMA mask, which was made by electron beam lithography, was carried out with a dry plasma etching tool in order to form well-like structures with a high aspect ratio (height/width approximate to 3-4) at the rims of the nano-holes. The extraordinary transmission through the patterns of such nano-wells was investigated experimentally and numerically. By doing numerical simulations of 50-nm and 100-nm diameter polystyrene beads in water and air, we show the potential of such patterns for self-induced back-action (SIBA) trapping. The best trapping conditions were found to be a trapping force of 2 pN/W/mu m(2) (numerical result) exerted on a 50-nm diameter bead in water. The simulations were based on the analytical Lorentz force model.

3D nano-structures for laser nano-manipulation / Seniutinas, Gediminas; Rosa, Lorenzo; Gervinskas, Gediminas; Brasselet, Etienne; Juodkazis, Saulius. - In: BEILSTEIN JOURNAL OF NANOTECHNOLOGY. - ISSN 2190-4286. - 4:1(2013), pp. 534-541. [10.3762/bjnano.4.62]

3D nano-structures for laser nano-manipulation

ROSA, Lorenzo;
2013

Abstract

The resputtering of gold films from nano-holes defined in a sacrificial PMMA mask, which was made by electron beam lithography, was carried out with a dry plasma etching tool in order to form well-like structures with a high aspect ratio (height/width approximate to 3-4) at the rims of the nano-holes. The extraordinary transmission through the patterns of such nano-wells was investigated experimentally and numerically. By doing numerical simulations of 50-nm and 100-nm diameter polystyrene beads in water and air, we show the potential of such patterns for self-induced back-action (SIBA) trapping. The best trapping conditions were found to be a trapping force of 2 pN/W/mu m(2) (numerical result) exerted on a 50-nm diameter bead in water. The simulations were based on the analytical Lorentz force model.
2013
4
1
534
541
3D nano-structures for laser nano-manipulation / Seniutinas, Gediminas; Rosa, Lorenzo; Gervinskas, Gediminas; Brasselet, Etienne; Juodkazis, Saulius. - In: BEILSTEIN JOURNAL OF NANOTECHNOLOGY. - ISSN 2190-4286. - 4:1(2013), pp. 534-541. [10.3762/bjnano.4.62]
Seniutinas, Gediminas; Rosa, Lorenzo; Gervinskas, Gediminas; Brasselet, Etienne; Juodkazis, Saulius
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1138510
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