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Light sheet microscopy with curved light sheets enables tiling-free imaging of an entire intact cleared mouse brain with lateral and axial spatial resolutions of 1.0 μm and 2.5 μm, respectively, in less than 3 h.
Combining space topology and time topology, topological states that are localized simultaneously in space and time are theoretically and experimentally demonstrated, potentially enabling the space-time topological shaping of light waves with applications in spatiotemporal wave control for imaging, communications and topological lasers.
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.
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.
The generalized self-imaging, or generalized Talbot, effect is demonstrated in the azimuthal angle and orbital angular momentum (OAM) domains, providing both a universal strategy for fully arbitrary control of the angular petal numbers or OAM mode spacing and a general method for the realization of efficient OAM mode sorters.
A Fourier-transform imaging spectrometer enables two-dimensional spectral Brillouin imaging at a throughput of up to 40,000 spectra per second over a 300 × 300 µm² field of view.
By pairing an octave-spanning terahertz microcomb with a terahertz Vernier microcomb, a continuous-wave laser at 871 nm is frequency divided to a radiofrequency clock output at 235 MHz. This laser is designed for frequency doubling to reach the ytterbium ion clock transition at 435.5 nm.
By engineering the crystallization process of Sn–Pb mixed perovskite films, all-perovskite tandem solar cells fabricated using an antisolvent-free method deliver a certified power conversion efficiency of 28.87% and retain 87% of this efficiency after 450 h of operation.
A miniaturized diffractive neural network is fabricated on the distal facet of a multimode fibre, allowing all-optical image transportation through the fibre. With a compact footprint of 150 μm × 150 μm, the system allows the transportation of images with a minimum feature size of 4.90 μm and shows transfer learning capabilities when transporting images of biological cells projected by spatial light modulators.
