Dispersive readout with two orthogonal modes of a dielectric cavity

A. M. Kozodaev; I. S. Cojocaru; S. M. Drofa; P. G. Vilyuzhanina; A. Chernyavskiy; V. G. Vins; A. N. Smolyaninov; S. Ya. Kilin; S. V. Bolshedvorskii; V. V. Soshenko; A. V. Akimov

doi:10.1016/j.sintl.2026.100388

paper

Dispersive readout with two orthogonal modes of a dielectric cavity

arXiv:2512.07356 · doi:10.1016/j.sintl.2026.100388

Abstract

Nitrogen-vacancy color centers in diamond have proven themselves as a good, sensitive element for the measurement of magnetic fields. While the mainstream of magnetometers based on NV centers uses so-called optically detected magnetic resonance, there has recently been a suggestion to use dispersive readout of a dielectric cavity to enhance the sensitivity of magnetometers. Here, we demonstrate that the dispersive readout approach can be significantly improved if a two-channel scheme is considered.