High Coherence Times in NV-Doped Diamond Films for Quantum Sensing
Nitrogen vacancy centers in diamond enable powerful room-temperature quantum sensing, but achieving high sensitivity requires thin, high-quality films with carefully controlled nitrogen content. This study demonstrates micrometer-thin diamond layers with sharp interfaces and long spin coherence times, showing that engineered growth and isotopic control can minimize defects and approach theoretical performance limits—making them highly promising for scalable quantum sensing devices.