Ghost interference in double-slit experiment with type-Ⅱ parametric down-conversion resource

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（7）
• 页码范围: 54-56
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.071901

摘要

A double-slit ghost interference experiment performed on an entangled resource using type-Ⅱ non-collinear degenerate spontaneous parametric down-conversion(SPDC) is demonstrated.The influence of the distance between the double-slit and the bucket detector preceded by a pinhole is studied.The experimental results show that the interference fringes become increasingly distinct with higher visibility when the pinhole-double-slit distance increases.A first-order classical theory based on the Klyshko's two-photon advanced-wave picture,and a second-order quantum-image theory are provided for explanations.The fitting results indicate that the divergence of the converted fluorescence significantly affects the ghost fringes.