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The fast and convenient study of ion channels in cells continues to pose challenges. Interferometric scattering microscopy delivers robust signals from single channels, paving the way for label-free investigation of their function in live cells.
A spectrally and polarization-resolved wavefront detector can measure the spatio-temporal vector electric field of ultrashort laser pulses in a single shot.
Guiding light is an essential task in optics, from optical fibres to compact nanoscale systems. Here, a few-atoms-thin MoTe2 layer embedded into a planar waveguide emits photons into waveguide modes that propagate coherently, paving the way for waveguide quantum electrodynamics with van der Waals materials.
A wide-field microscope capable of simultaneously measuring circular dichroism and circular birefringence signals over wide fields of view of the order of hundreds of micrometres is demonstrated, addressing the challenge of spatially resolving chiral heterogeneity in materials and biomolecules.
An ultra-thin mixed-reality (MR) display design that is based on a unique combination of waveguide holography and artificial intelligence-driven holography algorithms is demonstrated, creating visually comfortable and perceptually realistic 3D VR experiences in a compact wearable device.
A new p-type small molecule enhances defect passivation and improves interfacial charge transport in perovskite solar cells, enabling devices with a certified power conversion efficiency of 26.72%, 97% of which is maintained after 2,500 h of continuous operation.
A broadband cascaded amplification scheme enables the generation of intense near-single-cycle pulses with excellent temporal contrast and waveform control.
A high-peak-power low-duty-cycle pulsed fibre laser enables stimulated Brillouin scattering microscopy with pixel dwell times as low as 0.2 ms and spatial resolution as low as 500 nm and 2 μm in the lateral and axial directions, respectively.
A new platinum(ii)-based emitter features suppressed intermolecular interactions, enhanced molecular rigidity and locally excited character, enabling narrowband blue phosphorescent OLEDs emitting at 464 nm with a full-width at half-maximum of 17.1 nm and an external quantum efficiency of 30.8% at a luminance of 1,000 cd m−2.
CrSBr, a van der Waals antiferromagnetic semiconductor, is used to fabricate photonic crystal slabs, featuring exceptional in situ control over optical behaviour and thus enabling precise manipulation of photonic modes at near-visible and infrared wavelengths.
Holmium-doped nanoparticles exhibit a novel parallel photon avalanching mechanism, offering controlled chromaticity and enabling sub-diffraction, multicolour bio-imaging upon excitation with a single near-infrared laser.
Programmable nonlinearities — including control over the response order up to high orders — can now be realized on-chip at ultralow power via field programmability. This advance paves the way for more scalable and energy-efficient photonic computing in applications such as machine learning, optical signal processing and communications, analogue computing and quantum photonics.
