Design and fabrication of resonant structures with diamond for efficient light extraction

Optically active defects, such as nitrogen-vacancy or silicon-vacancy centers in diamond, show exciting properties such as the emission of single photons and multi-photic states (e.g. superradiance), and optically detected magnetic resonance. These can lead to applications in quantum and other emerging technologies. In order to build a diamond-based quantum system, efficient fluorescence collection from the defect centers and engineering their spectral and modal features are crucial. Here, we will report our results on the light collection efficiency and controlling the emission studies in shape-dependent Mie-resonant structures with embedded colour centers. We predict the performance using Finite-Difference Time-Domain (FDTD) method. Further, we will discuss our progress related to the fabrication and characterization of these structures.