Nano Explorations: Cavity–enhanced microwave readout of a diamond sensor

Cavity–enhanced microwave readout of a diamond sensor

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Erik Eisenach, PhD Candidate
Electrical Engineering & Computer Science
MIT Lincoln Laboratory

In this talk, Eisenach will discuss how he and fellow researchers leverage strong coupling between an ensemble of solid-state spins and a dielectric microwave cavity for high-fidelity, room-temperature readout of nitrogen-vacancy centers. Using this strong collective interaction, they probe the spin ensemble’s microwave transition directly, overcoming the optical photon shot noise limitations of conventional fluorescence readout. Furthermore, they apply this technique to magnetometry, and show magnetic sensitivity approaching the Johnson–Nyquist noise limit of the system.

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