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Intrinsically polarized white-light emission is highly demanded for many applications. It is now possible to realize it via a bimolecular doping strategy of organic semiconductor single crystals, overcoming long-standing limitations in organic emitters.
By integrating a moiré photonic structure on-chip with advanced microelectromechanical system (MEMS) technology, an in situ twisted moiré photonic platform that can be tuned is realized, enabling nanometre-scale positioning of two optical nanostructures in either the near- or far-field coupling regime.
Ultrafast magnetic field steps are generated by light-induced quenching of supercurrents in a YBa2Cu3O7 superconductor. They exhibit millitesla amplitude, picosecond rise times and slew rates approaching 1 GT s–1.
A systematic study of 15 non-fullerene-based organic solar cells elucidates loss mechanisms and enables an encapsulated device to retain 91% of its initial efficiency after seven months of outdoor operation in Saudi Arabian climate.
Dense three-dimensional integration of photonics and electronics results in a high-speed (800 Gb s−1) data interface for semiconductor chips that features 80 communication channels and consumes only tens of femtojoules per transmitted bit.
Guiding light around dynamic regions of a scattering object by means of propagating light through the most ‘stable’ channel within a moving scattering medium is demonstrated, potentially advancing fields such as deep imaging in living biological tissue and optical communications through turbulent air and underwater.
Nonlinear optical properties of transparent conducting oxides are explored through the full spatio-spectral fission of an ultrafast 93-fs pulse traversing a submicrometre time-varying aluminium zinc oxide layer in its near-zero-index region, providing insights into the use of these materials for integrated photonics, photonic time crystals and integrated neural networks.
By combining an ultralow-loss silicon nitride reference cavity with a diode laser, the interrogation of a strontium-ion optical clock is possible with excellent accuracy. The development is a step towards miniature, integrated optical clocks.
Super-resolution microscopy offers valuable tools to tackle biological questions. Nature Photonics spoke with Markus Sauer, from the University of Würzburg, about the advantages and outstanding challenges of super-resolution microscopy for biological applications.
The challenges of fabricating low-loss waveguides and the reliance on bulky external magnets hinder the miniaturization of Faraday isolators. Now, researchers have overcome this limitation by femtosecond laser writing of waveguides within latched garnet.
The performance of super-resolution microscopy is continuously improving. Nature Photonics interviewed Stefan Hell, from the Max Planck Institute for Multidisciplinary Sciences, about key milestones in the field, current capabilities of MINFLUX and what remains to be excited about.
The authors review MINFLUX super-resolution microscopy, outlining its advantages and limitations, recent progress, and an outlook for future developments.
Using a grating-based mode-splitting and reflector approach, a bidirectional chip-scale nanophotonic Kerr-resonator circuit that consumes 97% of the pump power to generate a soliton frequency comb at approaching unit efficiency with 65% conversion efficiency is reported.
The researchers exploit exciton-to-trion conversion in ångström-thick semiconductors for all-optical detection of electrical activity in cardiomyocyte cultures. This approach affords high temporal resolution and paves the way for elusive label-free all-optical voltage-sensing applications of two-dimensional semiconductor materials in the biological domain.
Three-dimensional multiplane structured illumination microscopy, combining three-beam interference, multiplane detection and a synergistically evolved reconstruction algorithm, enables 3D imaging at rates of up to 11 volumes per second in live cells with lateral and axial spatial resolutions of 120 and 300 nm, respectively.
By resonant excitation of an InAs quantum dot embedded in a microcavity, a deterministic single-photon source is demonstrated. Single-photon purity of 0.9795(6), photon indistinguishability of 0.9856(13), and an overall end-to-end efficiency of 0.712(18) are simultaneously obtained.
Combining on-chip photon-pair sources, two sets of linear integrated circuits for path entanglements and two path-to-orbital angular momentum converters, free-space-entangled orbital angular momentum photon pairs can be generated in high-dimensional vortex states, offering a high level of programmable dynamical reconfigurability.
Cluster states with three-dimensional connectivities are realized by selecting specific time–frequency mode bases for multimode quantum light. The cluster state generation is verified by nullifier measurements as well as full inseparability tests across all possible bipartitions.
