Optics and photonics articles from across Nature Portfolio

Illuminating internal organs and tissues with high controllability and adaptability remains challenging. Here the authors present a flexible, biodegradable photonic device called iCarP for large area, high intensity, wide spectrum, deeply penetrating, continuous or pulsatile illumination.

This study presents a deep learning pipeline to automatically locate and count large herds of migratory ungulates (wildebeest and zebra) in the Serengeti-Mara ecosystem using fine resolution satellite imagery. The results achieve accurate detection of nearly 500,000 individuals across thousands of square kilometers and multiple habitat types.

Chimera states of coupled oscillators have been the subject of considerable interest in complex nonlinear systems. The authors experimentally observe chimera states in a photonic spiking neural network of identical neurons with homogeneous interactions, suggesting that the system with high controllability provides a novel platform to researching synchronous phenomena.