All-in-one Quantum Diamond Microscope for Sensor Characterization

• URL: http://arxiv.org/abs/2404.12495v1
• Date: Thu, 18 Apr 2024 20:17:35 GMT
• Title: All-in-one Quantum Diamond Microscope for Sensor Characterization
• Authors: Connor Roncaioli, Connor Hart, Ronald Walsworth, Donald P. Fahey,
• Abstract summary: Nitrogen-vacancy centers in diamond are a leading modality for magnetic sensing and imaging under ambient conditions. These sensors suffer from degraded performance due to paramagnetic impurities and regions of stress in the diamond crystal lattice. This work demonstrates a quantum diamond microscope for simultaneous mapping and spatial correlation of key properties of a millimeter-scale NV-diamond sensor chip.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Nitrogen-vacancy (NV) centers in diamond are a leading modality for magnetic sensing and imaging under ambient conditions. However, these sensors suffer from degraded performance due to paramagnetic impurities and regions of stress in the diamond crystal lattice. This work demonstrates a quantum diamond microscope (QDM) for simultaneous mapping and spatial correlation of key properties of a millimeter-scale NV-diamond sensor chip, including: NV ensemble photoluminescence (PL) amplitude, spin-lattice relaxation time (T$_1$), and homogeneous and inhomogeneous spin coherence lifetimes (T$_2$ and T$_2^*$), as well as lattice stress/strain, birefringence magnitude, and birefringence angle of the diamond crystal.

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