Communication: Toward ultrafast, reconfigurable logic in the nanoscale

Abstract

We propose and illustrate numerically a class of nanoscale, ultrafast logic gates with the further advantage of reconfigurability. Underlying the operation of the gates and their versatility is the concept of polarization control of the electromagnetic energy propagating via metal nanoparticle arrays. Specifically, a set of different logic gates is shown to obtain from a single metal nanoparticle junction by modification of the polarization properties of the input light sources. Implications and extensions of the gates are discussed.

Silicon as Reducing Agent for Controlled Production of Plasmonic Copper Nanocomposite Glasses: A Spectroscopic Study

“…5 In particular, in the field of nonlinear plasmonics, the large optical nonlinearities of metal nanostructures with their ultrafast optical responses make plasmonic materials attractive for alloptical signal processing and ultrafast switching. 5,6 In this regard, plasmonic metal nanocomposites fabricated in a durable inorganic host such as glass are very attractive for application in such photonic devices. 7,8 Within the noble metals (Cu, Ag, Au), copper nanoparticles (NPs) offer the most cost-effective alternative with plasmonic properties similar to the less abundant element gold.…”