Momentum-Resolved Electron Energy Loss Spectroscopy for Mapping the Photonic Density of States
Momentum-Resolved Electron Energy Loss Spectroscopy for Mapping the Photonic Density of States
Strong nanoscale light-matter interaction is often accompanied by ultra-confined photonic modes and large momentum polaritons existing far beyond the light cone. A direct probe of such phenomena is difficult due to the momentum mismatch of these modes with free space light however, fast electron probes can reveal the fundamental quantum …