Mechano-Raman spectroscopy is demonstrated by using interlayer phonons of atomic-layer vibrators to drive synchronous motion of the metallic plasmonic structure that can then be detected. The modulated light scattering brings out the information that cannot be accessed by optical Raman spectroscopy.

The turbulent dynamics of a 2D quantum fluid of exciton–polaritons is measured in a planar AlGaAs microcavity after a pulsed optical excitation. Clear evidence of both the onset of vortex clustering and inverse energy cascade is provided.

A nonlinear optical neural network image sensor based on an image intensifier enables efficient all-optical image encoding for a variety of machine-vision tasks.

Researchers demonstrate that the dark saturation current in organic photodiodes is fundamentally limited by mid-gap trap states. This leads to an upper limit for specific detectivity.

Researchers demonstrate sub-picosecond steering of ultrafast incoherent emission from a light-emitting metasurface. The steering is achieved over a 70° range.

3D-RAPID, a scalable computational microscope using 54 cameras, records 3D topographic videos of freely moving organisms over an area of 135 cm² at a spatial resolution of tens of micrometres and at a throughput exceeding 5 gigapixels per second.

In recent decades, progress in developing better nonlinear materials has not been as rapid as wished. Here I propose that this may be explained by considering the simple view of nonlinear optical phenomena as being determined mostly by the length of interaction time between photons and matter. Tentative routes towards improvements in the efficiency of nonlinear optical phenomena are suggested.

Nature Photonics has now integrated the Figshare data repository into its submission system.

Nature Photonics talks to Mark Hahnel, the founder and CEO of Figshare, a popular data repository, about the benefits and trends in making data open and shareable.

Mordechai (Moti) Segev spoke with Nature Photonics about the fascinating topic of photonic time crystals — materials with a refractive index that is periodically modulated in time on ultrafast timescales — and their inspiring future ahead.

Recollected by his colleagues as a creative and humble scholar with an indomitable will, Byoungho Lee was enthusiastic about realizing the holistic potential of holographic displays.

Metalenz, a spin-out company from Harvard University founded in 2016, has launched its first metasurface-based product. Nature Photonics spoke with co-founder Federico Capasso about the company and its plans for flat optics.