Observation of Two-Photon Stimulated Emission and Three-Photon Interference
Fang‐Wen Sun, Bi‐Heng Liu, Yan-Xiao Gong, Yun‐Feng Huang, Guang‐Can Guo, Z. Y. Ou · 2007
By injecting a weak coherent state into a parametric amplifier and making the appropriate projection measurement, we observe the stimulated emission of two photons. This phenomenon can be interpreted as a three-photon interference effect.