  In this work we demonstrate spectral-temporal correlation measurements of the
Hong-Ou-Mandel (HOM) interference effect with the use of a spectrometer based
on a photon-counting camera. This setup allows us to take, within seconds,
spectral temporal correlation measurements on entangled photon sources with
sub-nanometer spectral resolution and nanosecond timing resolution. Through
post processing, we can observe the HOM behaviour for any number of spectral
filters of any shape and width at any wavelength over the observable spectral
range. Our setup also offers great versatility in that it is capable of
operating at a wide spectral range from the visible to the near infrared and
does not require a pulsed pump laser for timing purposes. This work offers the
ability to gain large amounts of spectral and temporal information from a HOM
interferometer quickly and efficiently and will be a very useful tool for many
quantum technology applications and fundamental quantum optics research.
