All-Optical Thermometry and Thermal Properties of the Optically Detected Spin Resonances of the NV- Center in Nanodiamond

The negatively charged nitrogen-vacancy (NV ) center in diamond is at the frontier of quantum nanometrology and biosensing. Recent attention has focused on the application of high-sensitivity thermometry using the spin resonances of NV centers in nanodiamond to subcellular biological and biomedical research. Here, we report a comprehensive investigation of the thermal properties of the centers spin resonances and demonstrate an alternate all-optical NV thermometry technique that exploits the temperature dependence of the centers optical DebyeWaller factor.