Passive linear nanoscale optical and molecular electronics device synthesis from nanoparticles

Abstract

Arrays of nanoparticles whose interactions can be characterized by hopping Hamiltonians can serve as excitation transmission lines. Here we show, that in addition suitable arrangements of nanoparticles can form beam splitters, phase shifters, and crossover splitters. With these elements, any discrete unitary transformation can be implemented on input modes via a network of nanoparticles in which all the components lie in the same plane. These nanoparticle networks can produce optical functionalities at a length scale much smaller than 1 µm.

Robust-to-loss entanglement generation using a quantum plasmonic nanoparticle array

“…The tapered metal nanowires are connected to adjacent metal nanoparticles and serve as input/output ports. The nanoparticle structure can be decomposed into two arms, each consisting of a linear array of nanoparticles, as considered in [13], which meet in the centre at a special arrangement of four nanoparticles that serves as a plasmonic beam splitter, as discussed in [14]. Each arm of nanoparticles supports electron-charge density oscillations in the longitudinal and transverse directions with respect to the array orientation.…”

“…Here, novel capabilities in the way the electromagnetic field can be localized [5] and manipulated [6] open up the prospect of miniaturization, scalability and strong coherent coupling with single-emitter systems [7], beyond the limits of conventional photonic systems [8]. In particular, with the advancement of nanofabrication and characterization technologies, metal nanoparticles have been attracting considerable attention as they allow a flexible approach to reaching a high confinement of optical fields [9][10][11][12], and it has recently been suggested to use them for building compact on-chip quantum plasmonic networks operating at the nanoscale [13][14][15]. However, Ohmic loss in the metals that support plasmonic excitations is a major obstacle for realizing plasmonic quantum information processing and quantum control [16].…”

High precision and high yield fabrication of dense nanoparticle arrays onto DNA origami at statistically independent binding sites

“…9,10 In addition, when metal nanoparticles are organized into optical beam-splitters, a change of interparticle spacing affects the power splitting ratio. 11 To realize near-field, sub-diffraction, optoelectronics, self-assembly of metallic arrays and heterostructures containing gold nanoparticles (AuNPs) and quantum dots (QDs) is required. DNA nanotechnology also necessitates both high precision and high yield to become practical for scalable nano-manufacturing.…”

Multiscaffold DNA Origami Nanoparticle Waveguides

“…16−18 Metal nanoparticles can also be arranged into a variety of geometries that can fulfill the functions such as filters, directional couplers, beam splitters, and phase shifters. 19,20 Thus, precise control over nanoparticle size, spacing, and spatial arrangement offers the potential for a complete set of subdiffraction nanoscale optical components.…”