Measuring dispersion of biphotons
Assaf Barak, Mordechai Segev · Physical Review A · 2012
We study the interference pattern of biphotons passing through a dispersive medium, and devise a method for measuring dispersion in coincidence counting of entangled photons. By measuring the Gouy phase shift accompanying dispersion, we show that it fundamentally differs from the Gouy phase expected from classical models. Finally, we show that the second-order correlation function of the dispersed biphoton can be much wider than the pattern predicted from classical analog.