Optics and photonics articles from across Nature Portfolio

“Previous studies investigating the creation of optical frequency combs through parametric modulation of microresonators rely on lumped-element models that do not consider how the modulations are spatially distributed. The current study underscores the crucial role of these spatial distributions in SNAP bottle microresonators, particularly in producing optical frequency combs with low repetition rate.

Interface dipole modulated hot-electron ejection enables an on-chip electric readout plasmonic hydrogen sensor with abnormal S-shape I–V and advanced sensing performance at a limit of detection of 1 ppm.

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.

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

A general hydrochloric acid-assistant powder-to-powder strategy was proposed for preparing a series of lead-free perovskite microcrystals, meeting the needs of rapid preparation, mass production and remarkable fluorescent performance, simultaneously.