Photonic devices articles from across Nature Portfolio

Topological protection in disclination lattices that relies on non-trivial winding in momentum space and real space is used to confine and guide vortices that feature arbitrary high-order charges. This approach could help in the development of orbital angular momentum-based photonic devices.

The authors present a method for creating generative models that produce test instances for quadratic unconstrained binary optimization (QUBO) problems, inspired by Hebb’s rule. Their approach identifies key solution patterns and complexity transitions, providing a platform to evaluate the performance of Ising hardware and solvers efficiently.

The understanding of the origins of device degradation of perovskite solar cells remains limited. Here, the authors establish hysteresis as a diagnostic key to unveil and remedy degradation issues and investigate the relations between characteristic J-V hysteresis features and device deficiencies.

Paul Szypryt and co-authors present a kinetic inductance current sensor which uses nonlinear kinetic inductance in a superconducting resonator for current measurement. Their device demonstrates a readout noise below the level of a coupled transition-edge sensor.

Prof. Juejun Hu is recognized as a leading expert in integrated photonics and optical materials. His pioneering research has not only advanced the frontiers of academia but also made significant impacts on industrial applications.

A new design of electron gun that uses terahertz waves to accelerate electrons in a high field gradient brings a tabletop answer to the generation of ultrashort electron bunches.

Schematic view of the exceptional point on the bilayer metasurface, exhibiting a unidirectional scattering behavior of perfect absorption/reflection.