The effect of photon statistics on two-photon absorption and emission

Quantum Statistics of Light after Two-photon Absorption and Emission Processes

Change of the photon statistics by one-photon absorption and by simultaneous one-photon and two-photon absorption

Effect of spatial and temporal structure of emission on two-photon absorption

Photon statistics and time dependence of two photon absorption

Quantum statistics of light after saturated two-photon emission processes and the photon statistics of a two-photon laser

Theory of two-photon absorption and emission second-order saturation effect