Frequency-Tunable Current Imaging using a Quantum-Mixer Microscope based on Nitrogen-Vacancy Centers in Diamond

Tuesday, October 29, 2024: 1:40 PM
202 (Hilton San Diego Bayfront)
Mr. Samuel Karlson , MIT, Cambridge, MA, MIT Lincoln Lab, Lexington, MA
Dr. Pauli Kehayias , MIT Lincoln Lab, Lexington, MA
Dr. Jennifer Schloss , MIT Lincoln Lab, Lexington, MA
Mr. Andrew Maccabe , MIT Lincoln Lab, Lexington, MA
Dr. David Phillips , MIT Lincoln Lab, Lexington, MA
Dr. Guoqing Wang , MIT, Cambridge, MA
Dr. Paola Cappellaro , MIT, Cambridge, MA
Dr. Danielle Braje , MIT Lincoln Lab, Lexington, MA

Summary:

We demonstrate a quantum diamond microscope (QDM) apparatus that is capable of pulsed magnetic field imaging measurements (instead of the traditional continuous-wave implementation), solving several technical challenges to make this possible. We use this instrument to demonstrate a new AC magnetic imaging technique called quantum frequency mixing (QFM), allowing us to image MHz-frequency AC magnetic fields in electronics over a wide frequency range with high sensitivity and spatial resolution.
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