Back to Search
Start Over
Fluorescence thermometry enhanced by the quantum coherence of single spins in diamond
- Source :
- Proc. Natl. Acad. Sci. USA 110, 8417 (2013)
- Publication Year :
- 2013
-
Abstract
- We demonstrate fluorescence thermometry techniques with sensitivities approaching 10 mK Hz^(-1/2) based on the spin-dependent photoluminescence of nitrogen vacancy (NV) centers in diamond. These techniques use dynamical decoupling protocols to convert thermally induced shifts in the NV center's spin resonance frequencies into large changes in its fluorescence. By mitigating interactions with nearby nuclear spins and facilitating selective thermal measurements, these protocols enhance the spin coherence times accessible for thermometry by 45x, corresponding to a 7x improvement in the NV center's temperature sensitivity. Moreover, we demonstrate these techniques can be applied over a broad temperature range and in both finite and near-zero magnetic field environments. This versatility suggests that the quantum coherence of single spins could be practically leveraged for sensitive thermometry in a wide variety of biological and microscale systems.<br />Comment: 14 pages, 4 figures Proc. Natl. Acad. Sci. USA, online early edition (2013)
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Proc. Natl. Acad. Sci. USA 110, 8417 (2013)
- Publication Type :
- Report
- Accession number :
- edsarx.1303.6730
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1073/pnas.1306825110