Chip-scale quantum sensors based on an integrated silicon carbide photonic platform

Abstract This review provides a forward-looking perspective on chip-scale quantum sensors based on integrated silicon carbide (SiC) photonic platforms. Although SiC quantum sensors, which utilize atomic point defects such as silicon vacancies and divacancies, are powerful tools for nanosensing, their performance in bulk-material configurations is often limited by factors such as poor photon collection and inefficient optical control. The novelty of this work lies in its focused analysis of how SiC photonic integration-leveraging components such as as waveguides, resonators, and metasurfaces can overcome these fundamental limitations. We explore how these integrated platforms enhance light-matter interactions, boost readout fidelity, and enable precise control over quantum states, providing a direct pathway to surpass the sensitivity of current bulk-material sensors. By synthesizing recent breakthroughs in SiC photonics with advances in materials science and quantum control, we outline a scalable road-map for developing high-performance, wafer-deployable quantum sensing systems for applications ranging from biomedical imaging to navigation in harsh environments.