Spatial second-order interference of pseudothermal light in a Hong-Ou-Mandel interferometer
Jianbin Liu, Yu Zhou, Wentao Wang, Ruifeng Liu, Kang He, Fuli Li, Zhuo Xu · Optics Express · 2013
The spatial second-order interference of two independent pseudothermal light beams in a Hong-Ou-Mandel interferometer is studied experimentally and theoretically. The similar cosine modulation in the second-order coherence function as the one with entangled-photon pairs in a Hong-Ou-Mandel interferometer is observed. Two-photon interference based on Feynman's path integral theory is employed to interpret the results. The experimental results and theoretical simulations agree with each other very well.