Non-classical Signature of Parametric Fluorescence and its Application in Metrology
Published Online: Aug 23, 2014
Page range: 227 - 236
Received: Sep 09, 2013
Accepted: Aug 14, 2014
DOI: https://doi.org/10.2478/msr-2014-0031
Keywords
© by M. Hamar
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
The article provides a short theoretical background of what the non-classical light means. We applied the criterion for the existence of non-classical effects derived by C.T. Lee on parametric fluorescence. The criterion was originally derived for the study of two light beams with one mode per beam. We checked if the criterion is still working for two multimode beams of parametric down-conversion through numerical simulations. The theoretical results were tested by measurement of photon number statistics of twin beams emitted by nonlinear BBO crystal pumped by intense femtoseconds UV pulse. We used ICCD camera as the detector of photons in both beams. It appears that the criterion can be used for the measurement of the quantum efficiencies of the ICCD cameras.