Silicon integration for quantum sensing

Kosuke Takada, Ryota Katsumi, Kenta Kawai +2 more

Hybrid-integrated photonic circuits play a crucial role in recent quantum technologies. However, deterministic and alignment-tolerant methods are still lacking, and their development is crucial for accelerating the scalable fabrication of quantum systems. In this study, we demonstrate alignment-tolerant coupling between diamond and silicon nitride waveguides using the deterministic transfer-printing method. To validate this approach, we also demonstrate the capability of on-chip quantum sensing using nitrogen vacancy centers in diamond waveguides. These results pave the way for compact packaging of highly sensitive quantum sensors based on photonic integrated circuits.

Liron Stern

山岡, 裕, Yuu Yamaoka, T. Ferrus +3 more

Wayesh Qarony, Walid Redjem, Yertay Zhiyenbayev +10 more

We present the first all-silicon quantum light source by integrating a silicon-based single color center within a silicon nanophotonic cavity. This approach results in a remarkable 30-fold increase in luminescence and an 8-fold emission acceleration, enabling scalable quantum technologies for communication, sensing, imaging, and computing.

Xiao, Yunfeng Yunfeng, Han +3 more

Daniel J. Blumenthal, Nitesh Chauhan, Andrei Isichenko +4 more

We review the latest advances in visible light ultra-low-loss silicon nitride photonic integration and the potential to scale complexity and reliability of atom and quantum systems as well as reduce system size, weight and cost.