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Two types of on-chip silicon device utilizing silicon T centres are developed: an O-band light-emitting diode and an electrically triggered single-photon source. Further, a new method of spin initialization with electrical excitation is demonstrated.
An optical sieve—an array of optically resonant voids in gallium arsenide—enables sorting, detecting and counting nanoplastics as small as a few hundreds of nanometres at concentrations as low as 150 μg ml−1 in lake water samples.
A tree-like arrangement of dichroic mirrors and multiple cameras coupled with an iterative spectral unmixing algorithm enables multispectral imaging of live cells in up to eight spectral channels with diffraction-limited spatial resolution and temporal resolution of 0.3 s for imaging a full cell volume.
This Perspective offers practical guidelines for the optical characterization of chiral materials, aiming to improve the consistency and reproducibility of experimental results.
The quantum nature of light has been harnessed in a photonic chip to perform machine-learning tasks. For specifically designed problems, the approach outperforms established classical methods.
The integration of a quantum emitter-embedded metasurface (QEMS) with a microelectromechanical system (MEMS)-actuated cavity enables ångstrom-level wavelength tuning and dynamic polarization-resolved emission. The platform provides a design paradigm for reconfigurable solid-state photon sources.
Shaping the polarization state of ultrashort pulses in the extreme ultraviolet (XUV) range is challenging, owing to the lack of suitable materials for controlling the phase of the radiation. However, an approach using seeded free-electron lasers operating in the XUV wavelength regime now makes it possible to synthesize pulses with spatially dependent polarization states.
The Review discusses recent advances in single-molecule orientation and localization microscopy (SMOLM) along with remaining challenges and promises for future developments of the field.
Lanbow, a palette of fluorophores with tunable near-infrared absorption and single-band emission in the shortwave infrared, enables up to nine-colour imaging in deep tissue and precise image-guided surgery in mammals.
A photonic processor based on a diffractive tensorized unit enables million-TOPS general-purpose computing. The approach challenges the generality and scalability constraints of diffractive computing and enables orders-of-magnitude improvements in energy efficiency over a high-end electronic tensor core processor.
Using the well-established foundry-based lithium niobate nanophotonics platform, a general electro-optic digital-to-analogue link with ultrahigh bandwidth (>150 Gb s−1) and ultralow power consumption (0.058 pJ b−1) is demonstrated, providing a direct, energy-efficient, high-speed and scalable solution for interfacing digital electronics and photonics.
Coating additive solutions onto wet perovskite films in situ enables flexible all-perovskite tandem solar cells with a certified power conversion efficiency of 23.0% for a module with an aperture area of 20.26 cm2. The modules maintain 97% of their initial efficiency after 10,000 bending cycles with a 10 mm radius.
A dual-gated moiré superlattice device made of trilayer WSe2/WS2/WSe2 enables controlling quadrupolar excitons by driving quadrupolar-to-dipolar exciton transitions via tuning the excitation intensity and doping.
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.
This Review covers the latest advances in perovskite/silicon tandem solar cells, with a focus on efficiency, stability and scalability, along with a discussion of outstanding challenges and future directions.
This Review reports the recent progress in utilizing van der Waals layered materials in various nanophotonics applications and provides an overview of their future developments in hybrid and tunable nanophotonics, 3D photonic structures, optical trapping, polariton devices and van der Waals integrated nanophotonic circuits.
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 fluidic system with spatially reconfigurable hot spots generated by optical pumping of plasmonic nanorods is demonstrated, creating virtual barriers by generating local heating via photothermal conversion, for potential applications in chemical synthesis, lab-on-chip devices and microbiology.
