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Updated: Jun 3, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Magnetically controlled optical modulator based on coherent perfect absorption in NV centers
Abstract:
We design an optical modulator based on an optical resonant cavity that coherently couples to an ensemble of nitrogen-vacancy (NV) centers, controlled by an external magnetic field. We reveal the coherent perfect absorption (CPA) of photons in the system and demonstrate how to suppress, block, and amplify light transmission by manipulating the amplitude, direction, and detuning of the external magnetic field, as well as the phase difference between the input light fields. This design leverages the friendly controllability of NV centers by an external magnetic field, suggesting the potential to develop advanced photonic devices.
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