Second-Order Temporal Interference with Thermal Light: Interference beyond the Coherence Time
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The first- and second-order temporal interference between two independent thermal and laser light beams is discussed by employing the superposition principle in Feynman's path integral theory. It is concluded that the first-order temporal interference pattern can not be observed
A novel thermal light based scheme utilizing the second-order coherence is proposed for ultra-high accuracy synchronization of two distant clocks. By using two-photon absorption, which involves an almost simultaneous absorption of two photons within a maximum delay given by the H
We report the results of two experiments performed with two-photon light, produced via collinear degenerate optical spontaneous parametric downconversion (SPDC), in which both second-order (one-photon) and fourth-order (two-photon) interferograms are recorded in a Mach-Zehnder in