Imaging and sensing articles from across Nature Portfolio

Zhang et al. report the incorporation of copper halide perovskite nanocrystals into glass fibre arrays for high-resolution remote scintillation over 5 m without crosstalk. Real-time and 3D X-ray imaging are demonstrated employing 1600 densely packed fibres with a single pixel diameter of about 10.4 µm.

Traditional polarization detection has relied on bulky optics and is inherently slow. Here, the authors present GOStokes, a single-shot method enabled by heterogeneous grain orientation in chiral, polycrystalline thin films.

The broad applications of emerging photonic technologies, such as photoacoustic imaging, optical wearable sensors, point-of-care testing and optogenetic control, in cardiovascular disease care are reviewed, together with the challenges of integrating these innovations into clinical practice.

TPP endows TPP₃Cu₂Br₂ with both excellent water resistance and sensitive temperature-dependent luminescence lifetime, achieving a S_r up to 12.82% K⁻¹.

A broadband achromatic metalens with high NA is demonstrated by a concept of stepwise phase dispersion compensation.

Local measurements of biological voltage production are key drivers of understanding in neurobiology and neurological and cardiac pathophysiology. Researchers have now shown that exciton–trion conversion in a two-dimensional semiconductor, MoS₂, can be used to optically image cardiomyocyte action-potentials in real-time.