 Rydberg ionization spectroscopy

Rydberg ionization spectroscopy is a technique used in atomic and molecular physics to study the properties and behaviors of atoms or molecules at high-energy states, specifically focusing on Rydberg states. Rydberg states are highly excited states of atoms or molecules characterized by principal quantum numbers (n) that are significantly larger than those of ground states. In these states, electrons are further from the nucleus and can exhibit unique properties due to their high angular momentum and reduced electron-nucleus interactions.