A Two-Photon Investigation of Nonlinear Sample Properties

We modeled the Hong-Ou-Mandel effect for a two-photon state modified by a nonlinear sample interaction and studied how the interaction with a sample material affected the output coincidence signal. We found expressions for coincidence detections as a function of time delay between Hong-Ou-Mandel input paths. We find that frequency-independent phase shifts between interferometer arms have no effect on the coincidence signal, while frequency-dependent time delays do.