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Artificial circular dichroism [1] is investigated for developing novel devices for active polarization controllers, like rotators and modulators and high efficient molecular sensors. Here we show the chiral behavior raised by metal (Au) nanostructures on dielectric (polystyrene, PS) nanosphere substrate produced by a self assembled procedure that guarantees large area fabrication with low time consuming...
The nonlinear optical properties of subwavelength patterned metallic structures have been recently re-analyzed. We developed a Green function based numerical method in order to calculate the second harmonic field pattern generated by a finite number of two dimensional single and double metallic rods of arbitrary shape. We modelled the optical response of Au considering contributions from both free...
Aim of the paper is to apply a modified version of the Rietveld method to two Au–Pd/C catalysts prepared by successive impregnation and reduced in situ by a special holder in order to show that a suitable WAXS analysis, performed in routine lab and using an X-ray conventional generator, can be very detailed and rich of information especially when a bimetallic catalyst has to be considered.
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