Probing picometre-scale interlayer deformations via hyperbolic polaritons

Nature, Published online: 17 June 2026; doi:10.1038/s41586-026-10638-w
A new polaritonic optical method that uses the mid-infrared out-of-plane hyperbolic polaritons mode is described and experimentally validated to allow the examination of picometre-scale interlayer deformations, providing a bridge between nanomechanics and photonics. ...