Jean-Baptiste Trebbia

TL;DR: Magneto-optical spectroscopy shows that the dark exciton state in single formamidinium lead bromide perovskite nanocrystals is located below the bright exciton triplet, which explains the intense brightness of the nanoparticles.

TL;DR: Spectroscopic investigations of individual Formamidinium lead iodide nanocrystals are performed, demonstrating single-photon emission and unravel the mechanisms of carrier–phonon interactions, which will guide the development of next-generation devices for photovoltaics and quantum technologies.

TL;DR: A far-field optical method based on local heating of the superconductor with a focused laser beam to realize a fast and precise manipulation of individual vortices, in the same way as with optical tweezers, provides the perfect basis for sculpting the magnetic flux profile in superconducting devices like a vortex lens or a vortex cleaner.

TL;DR: A combination of low-temperature magneto-optical and lifetime spectroscopies is used to study the band-edge exciton fine structure of highly photostable single CdSe/ZnS nanocrystals, identifying an optically inactive ground exciton state and showing evidence for highly efficient biexciton emission.

TL;DR: Using the zero-phonon line (ZPL) emission of a single molecule, a triggered source of near-infra-red (lambda = 785 nm) single photons at a high repetition rate is realized for the efficient generation of single indistinguishable photons.