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High-resolution quantum-enhanced phase imaging of cells

Memristance and transmemristance in multiterminal memristive systems

Memristive devices represent promising building blocks for the development of next-generation memory technologies, computing architectures, and neuromorphic systems. In addition to conventional two-terminal memristive circuits and crossbar array structures, multiterminal memristive systems, where emergent behaviours arise from the mutual interaction of numerous memristive elements, have been explored for neuromorphic data processing and computing applications. In this work, we extend the conc...

Integration of germanium-vacancy single photon emitters arrays in diamond nanopillars

The nanoscale fabrication of μm-spaced single-photon emitter arrays is crucial for the development of integrated photonic chips. We report on the fabrication and systematic characterization of germanium-vacancy (GeV) color centers arrays in diamond obtained upon ion implantation at the nanoscale. Ge2+ ion implantations at 35 keV and 70 keV energies were carried out using a focused ion beam (FIB) equipped with a liquid metal alloy ion source. The arrays of emitters are subsequently a...

Role of a Drastic Mechanical Treatment Toward Improving the Electrochemical Performance of a Solid-Gold Electrode

A simple mechanical polishing treatment of commercial solid-gold electrodes (SGEs) can renew the active gold surface, reduce manufacturing-related grooves, and markedly improve the repeatability of geometric-area estimation and the analytical performance in stripping voltammetry. The work focuses on the accurate determination of the geometric area of a SGE by two voltammetric techniques. Cyclic voltammetry (CV) at different scan rates, referred to as the Randles–Ševˇcik equation, and vol...

Magnetic Unclonable Functions Leveraging Remanence and Anhysteretic States

Physical Unclonable Functions (PUFs), derived from the unique properties of physical hardware, enable the generation of cryptographic keys with enhanced security against cloning and cyber-attacks because of their inherent randomness and on-the-fly key extraction. The scientific interest on these systems motivated the exploration of several hardware from optical, memristive to electric. Compared to optical and electric systems, magnetic PUFs offer strong robustness against environmental pertur...

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