Manipulating the Quantum Coherence of Optically Trapped Nanodiamonds

Abstract

The use of optical tweezers as a tool to facilitate nondestructive nanoscale sensing has been a growing area of research, particularly in the biological sciences. The nitrogen-vacancy (NV) center in diamond has attracted significant interest in this area due to the array of sensing modalities available and the biocompatibility of the material itself. Many of the diamond sensing modalities rely on the measurement and characterization of the NV spin. Recent work has demonstrated the utility of the spin-lattice relaxation time (T1) of NV centers in nanodiamond for nanoscale magnetic sensing and spectroscopy. Here, we demonstrate spin relaxometry with optically trapped nanodiamonds. The all-opti..