Polaritons elevate magneto-optic effect

The hardest barrier in the way to topological control over light with magnetic fields is extremely weak magneto-optic coupling. Now, strong light-matter coupling in an optical cavity has been used to reach record energy splitting values for photonic spins in magnetic fields. This is a potential game changer for topological photonics.

Automated summary

A breakthrough has been achieved in topological photonics by using strong light-matter coupling in an optical cavity to reach record energy splitting values for photonic spins in magnetic fields.