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A diffractive dielectric grid placed between the anode and substrate of an organic light-emitting device is found to significantly enhance the extraction of light.
A protocol to recover states of optical continuous-variable entanglement is developed based on approximate heralded noiseless amplification. The degraded entanglement is completely recovered no matter how significant these losses are.
A compact source that generates sub-two-cycle-duration pulses with an average power of 0.1 W spanning 6.8–16.4 μm combines the properties of power scalability, high repetition rate and phase coherence for the first time in this spectral region.
Scientists have demonstrated non-collinear circularly polarized high-harmonic generation and showed that this method generates bright circularly polarized extreme-ultraviolet beams with both left and right helicity simultaneously.
A proof-of-principle quantum key distribution experiment based on the round-robin differential phase shift protocol is demonstrated. Using a coherent wave-packet containing five pulses, the quantum keys were distributed over up to 30 km of fibre.
Time-domain interferometry and near-field scanning microscopy are used to investigate infrared phonon polaritons exhibiting hyperbolic dispersion. Negative phase velocity and group velocity as small as 0.002c are confirmed.
Using a leaky-wave antenna, free-space-to-waveguide frequency-division multiplexing and demultiplexing are demonstrated in the terahertz range. Both the frequency and the spectral bandwidth of multiplexed channels can be independently controlled.
Photodiodes with an intrinsic narrow spectral response make it possible to discriminate between red, green and blue light without the need for any optical filters.
A hybrid nano-optomechanical system — a nanodiamond levitated in an optical dipole trap that contains a single nitrogen vacancy centre — shows the ability to simultaneously control multidimensional optical, phononic and spin degrees of freedom.
Perovskite-based devices typically exhibit broadband spectral responses. Here narrowband (< 20 nm FWHM) response is achieved for a photodetector application.
Based on optical saturation of the excited state of single fluorescent molecules with a doughnut-shaped beam, sub-10-nm-resolution optical microscopy at cryogenic temperatures is achieved.
A quantum simulation scheme is proposed for molecular vibronic spectra, a problem for which no efficient classical algorithm is currently known. The simulation is efficiently performed on a boson sampling machine simply by modifying the input state.
Researchers demonstrate an electrically driven nanoscale transmitter based on the broadband quantum shot noise of electrons tunnelling across a feed gap.
The morphology of perovskites, a materials system of great interest for use in solar cells and other optoelectronic devices, is found to strongly modify their charge generation and transport properties.
Self-parametric amplification, a nonlinear optical effect, is observed in optical fibre and results in optical spectrum narrowing and stable propagation.