Uniform liquid crystal alignment on metallic nanohole arrays by vapor-phase deposition of silane coupling agent

Polarization tomography of metallic nanohole arrays.

We report polarization tomography experiments on metallic nanohole arrays with square and hexagonal symmetry. As a main result we find that a fully polarized input beam is partly depolarized after transmission through a nanohole array. This loss of polarization coherence is found to be anisotropic; i.e., it depends on the polarization state of the input beam. The depolarization is ascribed to a...

Monomolecular Layers and Thin Films of Silane Coupling Agents by Vapor-Phase Adsorption on Oxidized Aluminum

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Directed liquid phase assembly of highly ordered metallic nanoparticle arrays.

Directed assembly of nanomaterials is a promising route for the synthesis of nanoscale materials. In this paper, we demonstrate the directed-assembly of highly ordered two-dimensional arrays of hierarchical nanostructures with tunable size, spacing and composition. The directed assembly is achieved on lithographically patterned metal films that are subsequently pulse-laser melted; during the br...

Phase switching of ordered arrays of liquid crystal emulsions

Polymer dispersed liquid crystals (PDLC) are a well established technology for electrooptic devices used in displays and light switches. They rely on dispersions of nematic liquid crystal material in a polymer matrix. In the absence of an electric field, the director field n(r), which characterizes the local average orientation of the rodlike nematic mesogens, is randomly oriented, leading to a...

Growth of single crystal graphene arrays by locally controlling nucleation on polycrystalline Cu using chemical vapor deposition.