Polarization-entangled photon-pair source with van der Waals 3R-WS2 crystal

• Main Authors: Feng, Jiangang, Wu, Yun-Kun, Duan, Ruihuan, Wang, Jun, Chen, Weijin, Qin, Jiazhang, Liu, Zheng, Guo, Guang-Can, Ren, Xi-Feng, Qiu, Cheng-Wei
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Bell state; Entangled photons
• Online Access: https://hdl.handle.net/10356/181336
• Institution: Nanyang Technological University

Ultracompact entangled photon sources are pivotal to miniaturized quantum photonic devices. Van der Waals (vdW) nonlinear crystals promise efficient photon-pair generation and on-chip monolithic integration with nanophotonic circuitry. However, it remains challenging to generate maximally entangled...