We consider the reflection from a random medium of light with short coherence length. We found that the second order correlation function of light can have a peak in a direction where the reflection angle is equal to angle of incidence. This occurs when the size of the region, from which light is collected, is larger than the coherence length.
@article{arxiv.1412.3440,
title = {Second order interference of chaotic light reflected from random medium},
author = {A. Yu. Zyuzin},
journal= {arXiv preprint arXiv:1412.3440},
year = {2020}
}