Observation of Simultaneity in Parametric Production of Optical Photon Pairs
Abstract
The quantum mechanical description of parametric fluorescence is the splitting of a single photon into two photons. This description has been verified by observing coincidences between photons emitted by an ammonium dihydrogen phosphate crystal pumped by a 325-nm He-Cd laser. The coincidence rate RC decreases to the calculated accidental rate [<0.03RC()], unless the two detectors are arranged to satisfy energy and momentum conservation and have equal time delays.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1970
- DOI:
- 10.1103/PhysRevLett.25.84
- Bibcode:
- 1970PhRvL..25...84B