Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function  

作　　者：Xuan Tang Yunxiao Zhang Xueshi Guo Liang Cui Xiaoying Li Z.Y.Ou 

机构地区：[1]Department of Physics,City University of Hong Kong,83 Tat Chee Avenue,Kowloon,HongKong SAR,China [2]The State Key Laboratory of Precision Measurement Technology and Instruments,College of Precision Instrument and Opto-Electronics

出　　处：《Light(Science & Applications)》2025年第2期422-429,共8页光(科学与应用)(英文版)

基　　金：supported in part by the National Natural Science Foundation of China(Grant Nos.12004279,92476113 and 12074283);by City University of Hong Kong(Project No.9610522);the General Research Fund from Hong Kong Research Grants Council(Nos.11315822,11301624);Joint NSFC/RGC Collaborative Research Scheme(No.CRS_CityU103/24).

摘　　要：Hanbury-Brown and Twiss(HBT)effect is the foundation for stellar intensity interferometry.However,it is a phase insensitive two-photon interference effect.Here we extend the HBT interferometer by mixing intensity-matched reference fields with the input fields before intensity correlation measurement.With the freely available coherent state serving as the reference field,we experimentally demonstrate the phase sensitive two-photon interference effect when the input fields are thermal fields in either continuous wave or non-stationary pulsed wave and measure the complete complex second-order coherence function of the input fields without bringing them together from separate locations.Moreover,we discuss how to improve the signal level by using the more realistic continuous wave broadband anti-bunched light fields as the reference field.Our investigations pave the way for developing new technology of remote sensing and interferometric imaging with applications in long baseline high-resolution astronomy.

关 键 词：phase sensitive interference complex coherence function stellar interferometry Hanbury Brown Twiss effect hbt interferometer stellar intensity interferometryhoweverit intensity correlation measurementwith 

分 类 号：O436[机械工程—光学工程]