Charge-depletion-enhanced WSe2 quantum emitters on gold nanogap arrays with near-unity quantum efficiency

• Main Authors: Cai, Hongbing, Rasmita, Abdullah, He, Ruihua, Zhang, Zhaowei, Tan, Qinghai, Chen, Disheng, Wang, Naizhou, Mu, Zhao, Eng, John J. H., She, Yongzhi, Pan, Nan, Wang, Qian, Dong, Zhaogang, Wang, Xiaoping, Wang, Juan, Miao, Yansong, Singh, Ranjan, Qiu, Cheng-Wei, Liu, Xiaogang, Gao, Weibo
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Quantum efciency; Single-photon emitters
• Online Access: https://hdl.handle.net/10356/179532
• Institution: Nanyang Technological University

Achieving unity quantum efficiency in single-photon emitters (SPEs) is a holy grail in quantum information science. Through plasmonic coupling it is possible to increase the quantum efficiency of SPEs by increasing the radiative decay rate, but to approach unity quantum efficiency, non-radiative dec...