Understanding and Enhancing the Color Center Emission in hBN Coupled to Photonic Circuits

Defects embedded in solids or thin films function as attractive quantum sensors. For example, negatively charged nitrogen vacancies NV^- in diamond films can be used for detecting electric, magnetic, and strain fields with promising sensitivity and resolutions. Here we explore the color center emission in van der Waals (vdW) materials, particularly hexagonal boron nitride (hBN), and in silicon carbide nanostructures, coupled to photonic circuits. We will discuss the design, photonic structure fabrication, deterministic spin defect generation, and characterization.