This report was developed under a DARPA contract for topic Atoms to products. Two primary goals were addressed in this project. In Focus Area 1 (Assembly Development) the goal was to assemble a 10 μm microelement consisting of an anisotropic lattice of ~5000 (~100 nm) dielectric nanoparticles (NPs) embedded in a polymer electrolyte. Successful completion of the objectives of this goal required that NPs be spatially located with nm-scale precision in a polymer matrix at scales up to ~10 μm (total). In Focus Area 2 (Functionality Development) the goal was to establish the efficacy of reconfigurable microelements by demonstrating atomic junction formation/dissolution between core-shell metal NPs in a polymer electrolyte on a model thin-film system. Work on this goal demonstrated that conductive channels can be formed and dissolved between metal NPs. Additional work in Focus Area 2 demonstrated the controllable formation and dissolution of self-limiting nanofilaments connecting multiple NPs (beads-on-a-string morphology) and demonstrated the formation of nanofilaments in self-organized polyelectrolyte nanopores for the growth of Ag nanofilaments by conductive-AFM. Collectively, work on the two focus area goals developed and demonstrated the technology needed for assembly and postassembly reconfigurable wiring of nanoscale optical lattices.
Holographic assembly of reconfigurable nanoscale plasmonic and photonic elementsArticle
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