Switching the Localized Surface Plasmon Resonance of Single Gold Nanorods with a Phase-Change Material and the Implementation of a Cellular Automata Algorithm Using a Plasmon Particle Array

Abstract

We investigate the modulation of the localized surface plasmon resonance (LSPR) of a gold nanorod (AuNR) using a GeSbTe film as an active medium. We demonstrate high-contrast switching of LSPR in an AuNR/GST/Au thin film sandwich structure upon phase change. To go beyond this single-particle switching functionality, we consider a plasmon particle system interacting with a phase-change material (PCM) to discuss the possibility of parallel processing devices with memory functionality, exploiting the plasticity and threshold behavior that are inherent characteristics of PCMs. We demonstrate that the temporal and spatial evolution of a plasmon-PCM array system can be equivalent to a cellular automata algorithm.

Facile Synthesis and Application of Ag-NPs for Controlling Antibiotic-ResistantPseudomonas spp. and Bacillus spp. in a Poultry Farm Environment

“…Tis optical observation was further verifed using UV-Vis spectroscopic analysis using the Ag-NPs specifc absorption peak (λ max ) 410 nm [96]. It is well known that nanoparticle induces specifc surface plasmon resonance depending of type of material and particle size [97,98]. Tus absorption peak (λ max ) at approximately between 400-410 nm wave length was employed for confrming the Ag-NPs synthesis [68,99].…”

Fast modulation of surface plasmons based on the photothermal effect of nonvolatile solid thin films

“…[43][44][45][46][47][48] Moreover, the sophisticated wiring of the electric circuits adds complexity to the devices, which burdens the aim of integration and miniaturization. Although some efforts have been made to combine GST with plasmonic nanogaps, the reversibility of switching is less robust due to the irreversible nanodeformation of the GST thin films during the repeated phase change, [49][50][51] which compromises their performances for nanoplasmonic devices.…”