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Films of densely packed core–shell quantum dots demonstrate full-colour amplified spontaneous emission with single-exciton gain, and are used to build vertical-cavity surface-emitting lasers operating at very low optical pumping thresholds.
The resonant frequency and magnitude of graphene plasmons in graphene/insulator stacks depend on the layer number, which allows tunable filters and polarizers to be built.
The results of simultaneous measurements of the structure and optical properties of more than 200 single-walled carbon nanotubes are reported and included in an atlas that allows the chiral index of any single-walled nanotube to be determined from a measurement of its optical resonances, and vice versa.
Gold nanorods coated with biotin can be used to detect single proteins in real time by monitoring the surface plasmon resonance of the nanorod with a photothermal assay.
A carbon nanotube resonator is used to form the basis of an ultrasensitive mass sensor that can also be employed to study basic phenomena in surface science.
A nanofabricated diffraction grating and single-molecule imaging are used to record the build up of the quantum interference patterns for molecules with masses as high as 1,298 AMU.
A single phosphorus atom is deterministically positioned between source, drain and gate electrodes within an epitaxial silicon device architecture to make a single-atom transistor.
Super-resolution fluorescence microscopy shows that the catalytic reactivity of a single gold nanorod varies along its sides, even though the same side facets span its length.
Arrays of vertical nanopillar electrodes can be used for both intracellular and extracellular recording with excellent signal strength and quality, and minimal damage to the cells.
A tunable concentration of localized magnetic impurities is inserted into a metal from a molecular monolayer, which allows many-body phenomena in magnetic impurity–host systems to be studied at unprecedented impurity concentrations.
A single point defect in graphene can act as an atomic antenna in the petahertz frequency range, leading to surface plasmon resonances at the subnanometre scale.