Triangle-beam interference structured illumination microscopy leverages radially polarized beams to generate two-dimensional lattice illumination patterns. The technique enables a temporal resolution of 242 Hz, spatial resolution of 100 nm and continuous imaging of neuronal growth for up to 13 h.

Researchers generated 16.7 nm wavelength extreme-ultraviolet Poincaré beams at the FERMI free electron laser without relying on optical elements. The method of in situ Poincaré beam production in free electron lasers enables straightforward flexibility in the orientation and balance of polarization states, and can be extended to other vector beams and to shorter wavelengths.

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.

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.

Semiconductor quantum dots that simultaneously support blue and yellow emission offer a route to realizing efficient white light-emitting diodes.

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 l...

A new platinum(ii)-based emitter features suppressed intermolecular interactions, enhanced molecular rigidity and locally excited character, enabling narrowband blue phosphorescent OLEDs emitting at 4...

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...

A single-shot full-vector-field measurement technique for intense, ultrashort laser pulses is studied, demonstrating the approach on systems ranging from high-repetition-rate oscillators to petawatt-c...

Exploiting resonant quantum electron tunnelling empowered by an optically resonant, doubly periodic plasmonic nanowire metasurface, a biosensor with no external light source is demonstrated, boosting ...

A platform based on quantum-emitter-embedded metasurfaces with a microcavity that can be tuned by a micro-electromechanical system is demonstrated, enabling dynamic photon emission with narrow bandwid...

Attosecond transient reflection spectroscopy is used to experimentally observe the attosecond electron dynamics of a crystalline diamond, showing that virtual interband transitions affect the timing a...

Solvent engineering by the addition of 1,4-butane sultone in a perovskite precursor solution simultaneously enhances the crystallization of the perovskite and passivates defects, resulting in a power conversion efficiency of 26.5%.

Combining attosecond metrology and soliton dynamics in hollow-core fibres, the generation of attosecond laser pulses from the deep-ultraviolet to the near-infrared regime and the measurement of attose...

The generation of spatiotemporal optical vortices in the extreme-ultraviolet regime is demonstrated via high harmonic generation. Topologically coupled at the nanometre and attosecond domains, these l...

Self-injection locking of an on-chip laser to a milimetre-scale vacuum-gap Fabry–Pérot cavity is demonstrated, with a phase noise of –97 dBc Hz–1 at a 10-kHz offset frequency and a fractional frequenc...

A reconstruction method for image scanning microscopy exploits all the information encoded in the four-dimensional image scanning microscopy dataset to achieve optical sectioning and maintain super-re...