Scientists created 'knots' made of light that can fly through messy air turbulence without losing their shape.
March 17, 2026
Original Paper
High-performance Sources of Multidimensionally Engineered Quantum Light Based on Monolithic Microcavity-metalens Interfaces
arXiv · 2603.15391
The Takeaway
Fog, heat, and air currents usually scramble laser beams, making them useless for long-distance communication. By twisting light into complex topological shapes called skyrmions, researchers found these 'light knots' are structurally protected and can survive chaotic conditions that would destroy a normal signal.
From the abstract
The ultimate non-classic light sources for modern photonic quantum technology require on-demand generation of indistinguishable quantum light with high brightness and flexible engineering of quantum emission in multiple degrees of freedom. In this work, we present monolithic microcavity-metalens interfaces consisting of quantum-dot-micropillar single-photon sources and ultra-thin metalenses accurately aligned on opposite sides of an III-V compound semiconductor chip. The pronounced cavity quantu