Journal
PHYSICAL REVIEW APPLIED
Volume 8, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.8.044015
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Funding
- Singapore National Research Foundation [NRF-NRFF2015-03]
- Competitive Research Program (CRP) [NRF-CRP14-2014-02]
- Astar QTE
- Singapore Ministry of Education [MOE2016-T2-2-077, MOE2017-T2-1-163, RG176/15]
- Nanyang Technological University [M4081441]
- National Natural Science Foundation of China [11574103]
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Quantum sensors with solid-state spins have attracted considerable interest due to their advantages in high sensitivity and high spatial resolution. The robustness against environmental noise is a critical requirement for solid-state spin sensors. In this paper, we present a self-protected infrared high-sensitivity thermometry based on spin defects in silicon carbide. Based on the conclusion that the Ramsey oscillations of the spin sensor are robust against magnetic noise due to a self-protected mechanism from the intrinsic transverse strain of the defect, we experimentally demonstrate the Ramsey-based thermometry. The self-protected infrared silicon-carbide thermometry may provide a promising platform for high sensitivity and high-spatial-resolution temperature sensing in a practical noisy environment, especially in biological systems and microelectronics systems.
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