Ultrafast Direct Measurement of HBT Effect by Two-photon Absorption Based on Feynman's Path-integral Theory

摘要

Hanbury Brown and Twiss effect of thermal light is directly observed in a modified Michelson interferometer with a two-photon absorption detector at the ultrafast timescale. The contribution of other items in signal of two-photon absorption detector are analyzed in detail by employing Feynman's path-integral theory.