Optical Stability and Photophysics of NV Centers in Diamond up to 120 GPa

• URL: http://arxiv.org/abs/2606.02399v1
• Date: Mon, 01 Jun 2026 15:45:43 GMT
• Title: Optical Stability and Photophysics of NV Centers in Diamond up to 120 GPa
• Abstract summary: The nitrogen vacancy (NV) center has emerged as a powerful quantum sensor in high-pressure research.<n>We study both experimentally and theoretically the optical properties of the NV center under hydrostatic pressure.
• Score: 8.030447350937612
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The nitrogen vacancy (NV) center has emerged as a powerful quantum sensor in high-pressure research, with the observation of optically detected magnetic resonance at megabar pressures. However, some aspects of NV physics require further investigation to optimize the development of NV-based sensing under pressure. Here, we study both experimentally and theoretically the optical properties of the NV center under hydrostatic pressure. We investigate the evolution of the zero-phonon line (ZPL) position, radiative lifetimes, optical lineshapes, and photoionization thresholds of the NV center under pressures up to ~120 GPa. We also provide spectroscopic guidelines for performing high-pressure optical experiments. Our results confirm that the NV center remains a robust quantum sensor under extreme hydrostatic pressures, especially for magnetic characterization.

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