This phenomenon ends the Rabi cycle and is initiated by illumination of a two-level system by a coherent beam of photons.
This phenomenon ends the Rabi cycle and is initiated by illumination of a two-level system by a coherent beam of photons. By definition the perturbing photon responsible for it is not destroyed and the probability of its occurrence is defined as the probability of the energy density per unit frequency times the Einstein constant, B21 (read: Bee-sub-two-one) and in its most familiar application, a pumping medium facilitates the population inversion necessary for its incidence. For 10 points-- name this form of optical amplification that is the basis of the LASER.
This phenomenon ends the Rabi cycle and is initiated by illumination of a two-level system by a coherent beam of photons.
{Stimulated Emission}