摘要
We present a two-photon interference experiment in a modified Mach-Zehnder （MZ） interferometer in which two Hong-Ou-Mandel effects occur in tandem and construct superposed two-photon states. The signal photons pass both the arms of the MZ interferometer while the idler photons pass one arm only. Interestingly, the probability of the idler photons emerging from any output port still shows a sine oscillation with the two-photon phase difference and it can be characterized only by the indistinguishability of the two-photon amplitudes. We also observe a two-photon interference pattern with a period being equal to the wavelength of the parametric photons instead of the two-photon photonie de Broglie wavelength due to the presence of two-photon phase difference, in particular, with complementary probabilities of finding the two-photon pairs in two output ports. The abundant observations can facilitate a more comprehensive understanding of the two-photon interference.
We present a two-photon interference experiment in a modified Mach-Zehnder （MZ） interferometer in which two Hong-Ou-Mandel effects occur in tandem and construct superposed two-photon states. The signal photons pass both the arms of the MZ interferometer while the idler photons pass one arm only. Interestingly, the probability of the idler photons emerging from any output port still shows a sine oscillation with the two-photon phase difference and it can be characterized only by the indistinguishability of the two-photon amplitudes. We also observe a two-photon interference pattern with a period being equal to the wavelength of the parametric photons instead of the two-photon photonie de Broglie wavelength due to the presence of two-photon phase difference, in particular, with complementary probabilities of finding the two-photon pairs in two output ports. The abundant observations can facilitate a more comprehensive understanding of the two-photon interference.
作者
刘瑞
孔令军
王周祥
司宇
齐文荣
黄双印
涂成厚
李勇男
王慧田
Rui Liu;Ling-dun Kong;Zhon-Xiang Wang;Yu Si;Wen-Rong Qi;Shuang-Yin Huang;Chenghou Tu;Yongnan Hui-Tian Wang(School of Physics and Key Laboratory of Weak-Light Nonlinear Photonics,Nankai University,Tianjin 300071;School of Physics and National Laboratory of Solid State Microstructures,Nanjing University,Nanjing 210093;Collaborative Innovation Center of Advanced Microstfuctures,Nanjing 210093)
基金
Supported by the National Key R&D Program of China under Grant Nos 2017YFA0303800 and 2017YFA0303700
the National Natural Science Foundation of China under Grant Nos 11534006,11774183 and 11674184
the Natural Science Foundation of Tianjin under Grant No 16JCZDJC31300
the Collaborative Innovation Center of Extreme Optics
