6 papers
Objective clustering protocol for single-molecule data: A lifetime vs. intensity study
Michael Lovemore, Joshua Botha, Bertus van Heerden +1
Single-molecule spectroscopy (SMS) is an exceptionally sensitive technique, but its inherently limited photon budget produces noisy data that can readily lead to subjective analyse…
Size-Dependent Fluorescence Kinetics Reveal Contributions of Intrinsic Quenching and Singlet-Triplet Annihilation during LHCII Aggregation
Francois Conradie, Bertus van Heerden, Michal Gwizdala +1
Aggregation of the main antenna complex of higher plants, Light-Harvesting Complex II (LHCII), is widely used as an in vitro model for energy-dependent quenching (qE), yet fluoresc…
Stationary two-qubit entanglement mediated by one-dimensional plasmonic nanoarrays
Luke C. Ugwuoke, Tjaart P. J. Krüger, Mark S. Tame
Entanglement is one of the key measures of quantum correlations present in nanophotonic systems, with promising applications in quantum optics and beyond. Previous studies have sho…
Multipolar and nonlocal effects in plasmon-mediated entanglement generation
Luke C. Ugwuoke, Tjaart P. J. Krüger, Mark S. Tame
The generation of quantum entanglement is important for a wide range of quantum technology protocols. In nanophotonics, a promising platform for quantum technologies, entanglement…
Quantum plasmonics model of refractive index sensing using photon correlations
L. C. Ugwuoke, T. P. J. Krüger, M. S. Tame
The interaction between the electric dipole moments of a quantum emitter and a metal nanoparticle gives rise to unique optical properties, such as interference-induced photon corre…
Raspberry Pi multispectral imaging camera system (PiMICS): a low-cost, skills-based physics educational tool
John C. Howell, Brian Flores, Juan Javier Naranjo +9
We report on an educational pilot program for low-cost physics experimentation run in Ecuador, South Africa, and the United States. The program was developed after having needs-bas…