Fabrication and Optical Characterization of 2D-Photonic Crystals Based

This book discusses the self-ordering of porous anodic alumina (PAA) membranes and their uses to deposit 2D-plasmonic nanostructures.The self-ordering of PAA membranes of different pore diameters and thicknesses were investigated.A method for the fabrication of PAA membrane without bottom barrier layer on Al substrate is described.The fabricated PAA template was applied to the growth of ordered nanowires, nanorods, nanoparticles, nanotubes, and similar nanostructures.High-density, uniform-sized and vertically aligned gold nanorods were grown on Al substrate by DC electrodeposition into the fabricated PAA membrane. Surface plasmon resonances (SPRs) were studied using s- and p-polarized light for both Au/PAA composites and freestanding Au nanorods arrays. Also, we directly develop a facile method to decorate modified PAA membrane with ultrathin porous film of Au nanoparticles with sub-gaps less than 25 nm and particles size less than 40 nm on the top surface utilizing r.f. magnetron sputtering. The brilliant Au-coated PAA membranes are useful for decorative purposes and hold promise as an effective SERS-substrates.