All-optical thermometry and thermal properties of the optically detected spin resonances of the NV(-) center in nanodiamond.

Plakhotnik, Taras; Doherty, Marcus W; Cole, Jared H; Chapman, Robert; Manson, Neil B · Nano Lett · 2014

basic_science · Level V

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Abstract

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 center's spin resonances and demonstrate an alternate all-optical NV(-) thermometry technique that exploits the temperature dependence of the center's optical Debye-Waller factor.