Quantum Frequency Mixing using an N-$V$ Diamond Microscope

Abstract

Wide-field magnetic microscopy using nitrogen-vacancy (NV) centers in diamond can yield high-quality magnetic images of DC and AC magnetic fields. The unique combination of micron-scale spatial resolution of scalar or vector fields at room temperature and parallel camera readout make this an appealing technique for applications in biology, geology, condensed-matter physics, and electronics. However, while NV magnetic microscopy has achieved great success in these areas, historically the accessible frequency range has been limited. In this paper, we overcome this limitation by implementing the recently developed technique of quantum frequency mixing. With this approach, we generate wide-field magnetic images of test structures driven by alternating currents up to 70 MHz, well outside the reach of DC and Rabi magnetometry methods. With further improvements, this approach could find utility in hyperspectral imaging for electronics power spectrum analysis, electronics diagnostics and troubleshooting, and quantum computing hardware validation.

8 pages main text, 3 pages supplement

References in corpus (7)

• Magnetic field imaging with NV ensembles
• Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Species
• Micrometer-scale Magnetic Imaging of Geological Samples Using a Quantum Diamond Microscope
• Magnetic Field Fingerprinting of Integrated Circuit Activity with a Quantum Diamond Microscope
• NV-Diamond Magnetic Microscopy using a Double Quantum 4-Ramsey Protocol
• Quantum Diamond Radio Frequency Signal Analyser based on Nitrogen-Vacancy centers
• High-Resolution Short-Circuit Fault Localization in a Multi-Layer Integrated Circuit using a Quantum Diamond Microscope

Cited by in corpus (1)

• Flux-trapping characterization for superconducting electronics using a cryogenic widefield N-$V$ diamond microscope