Detection of Singly Stimulated Two-Photon Emission from Metastable Deuterium Atoms
P. Bräunlich, P. Lambropoulos · Physical Review Letters · 1970
The observation of singly stimulated two-photon emission from metastable deuterium atoms is reported. A collimated beam of metastables is produced by charge exchange between cesium vapor and 5-keV deuterons. A pulsed Nd-glass laser is used for the stimulation. The generated 1373-\AA{} photons are detected at the exit slit of a spectrometer. Single-photon counting techniques are employed. The results obtained are in good agreement with theoretical calculations.