Probing individual phonon-polaritonic nanoparticle-on-mirror cavities by infrared nanospectroscopy

Isabel Pascual Robledo, Iker Herrero León, Karol Kołataj +4

Nanoparticle-on-mirror (NPoM) cavities enable extreme light confinement and strong light-matter interactions, but their realization with phonon-polariton materials in the mid-infra…