Temporal and spatial superbunching effects from a pair of modulated distinguishable classical lights

From the Feynman path integration theory of view, Hanbury Brown--Twiss effect would not be observed for one definite two-photon propagation path, as well superbunching effect. Here, temporal and spatial effects are measured from a pair modulated distinguishable classical light. These interesting phenomena realized by passing two orthogonal polarized laser beams through rotating ground glass plates in sequence. To understand underlying physical process, intensity fluctuation correlation is developed to describe domain, which agrees with experimental results well. Such conducive study plays an important role improving performance related applications, such contrast ghost imaging.