Abstract
The nitrogen-vacancy (N-$V$) center is a lattice defect in diamond, consisting of a substitutional nitrogen atom and an adjacent vacancy. This study exploits the electron-spin-dependent photoluminescence of N-$V$ centers to use them as radio receivers. The centers transduce frequency-modulated (FM) microwave radio signals to amplitude-modulated (AM) optical fluorescence signals. This effect has potential for photonics, quantum information processing, microwave applications, and wireless communication, even in extreme environments.
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