Cathodoluminescence

Cathodoluminescence is a phenomenon where materials emit light when they are bombarded with electrons. This process is often observed in minerals and other materials under an electron microscope. When the electrons strike the material, they excite its atoms, causing them to release energy in the form of visible light. This emitted light can reveal important information about the material's composition and structure, making cathodoluminescence valuable in fields like geology and materials science, where it helps researchers study the properties and origins of various substances.