Optimized Diamond Quantum Photonics

Diamond photonics enables applications ranging from nonlinear optics, to quantum technologies, including quantum computing, networking and sensing. However, challenges in design and fabrication limit the geometry of diamond nanostructures and ultimately impede diamond photonics from evolving into a scalable, efficient platform. Recently developed inverse design methods in photonics utilize machine learning and optimization techniques to overcome difficult design problems, providing a superior method over traditional design approaches. In this report, we combine inverse design with a scalable fabrication technique to develop an optimized diamond quantum nanophotonic platform. We utilize the flexibility of inverse design to demonstrate a variety of fabrication-tolerant and efficient components necessary to enable scalable optical circuits at the single-photon level.