Purcell Effect

The Purcell Effect describes how the environment around an excited atom or molecule influences the rate at which it emits light. When placed inside a specially designed cavity or near reflective surfaces, the emission can be sped up or slowed down compared to free space. This occurs because the surroundings change how easily the atom can release its energy as light, by affecting the available electromagnetic modes. Essentially, the Purcell Effect allows scientists to control and enhance light emission for applications like lasers, quantum computing, and advanced sensors.