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Linking distant quantum memories with light has been a goal of the quantum information community for many years. A team at the University of Geneva has now demonstrated that memories made from rare-earth-ion-doped crystals can be connected using a single photon.
Providing sufficient gain to overcome loss remains a fundamental challenge for light amplification in miniaturized plasmonic devices. Ongoing research gives hope for a cautious but optimistic outlook.
Techniques for the targeted optical stimulation of neurons may offer new ways to tackle medical problems such as heart defects, epilepsy, Parkinson's, blindness and hearing loss.
Extreme ultraviolet attosecond pulses, which emerge from the interaction of atoms with intense laser fields, play a central role in modern ultrafast science and the exploration of electron behaviour. Recent work now shows that catastrophe theory can help optimize the properties of these pulses.
The demonstration of an in-fibre semiconductor photodetector with gigahertz bandwidth bodes well for the future development of hybrid fibre optoelectronics.
Bio-inspired by the nano-architectures of iridescent Morpho butterfly scales, scientists have demonstrated a highly sensitive infrared detector that can efficiently upconvert mid-infrared radiation to visible iridescence changes.
Using extremely broadband ultrafast near-infrared pulses, scientists have demonstrated simultaneous second-harmonic-generation, third-harmonic-generation and four-wave-mixing microscopy, enabling a range of different structures and functional groups in a biological sample to be imaged at once.
By using a one-dimensional optical lattice to control and confine the location of cold 87Rb atoms, researchers have created a distributed Bragg reflector that enables optical parametric oscillation solely from atoms.
Researchers have shown that organic light-emitting diodes with transparent graphene electrodes are more flexible and exhibit higher efficiencies than those whose electrodes are made from rigid indium tin oxide.
Amalgamating the interdisciplinary domains of nanotechnology and terahertz technology, particularly the field of terahertz science in nanomaterials and nanodevices, seems to be where the terahertz research community is now heading.
Researchers have developed a semiconductor structure capable of supporting quantum correlations between photons and strong single-photon nonlinearities, thus paving the way for the development of chip-based devices for quantum secure communications and quantum information processing.
An efficient continuous-wave source of terahertz radiation that combines the outputs from two near-infrared semiconductor lasers in a novel photomixer looks set to benefit applications in spectroscopy and imaging.
Photonic manipulation of the spatial distribution of charge in relativistic electron bunches provides a promising way to generate intense coherent terahertz radiation.
