Chapter Five: Incoherent interference
Kaige Wang Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing, Chinawangkg@bnu.edu.cn
Abstract
The interference phenomenon of light is a common but most important effect in physics. In this chapter, we compare and analyze the interference effects of both coherent and incoherent light; in particular, the interference of spatially incoherent light sources is described. Thermal light and a two-photon entangled source may both be regarded as incoherent sources which can generate similar second-order interference effects, but their underlying physics is quite different. First-order interference can be realized with both spatially coherent and incoherent ...