Variance properties of the microwave absorption spectrum of an ensemble of nitrogen vacancy centers in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2023-11-30 |
| Journal | Europhysics Letters (EPL) |
| Authors | R. Chelly, TS Chang, Itamar Holzman, Tomer Cohen, Joseph Kantorovitsch |
| Institutions | Bar-Ilan University |
Abstract
Section titled āAbstractāAbstract This work presents an original method based on the variance properties of the microwave absorption spectrum of an ensemble of nitrogen vacancy centers in diamond. The spectrum is measured optically. A compact and simple device is designed to optimize the photon collection. We conduct a quantitative comparison of the ensembleās optical signal in both the visible and near infrared range. Using the enhanced signal-to-noise ratio achieved through the device geometry we perform real-time DC magnetometry at moderate light and microwave powers. Under these conditions, the amplitude of a DC magnetic field can be extracted from the variance of the microwave absorption spectrum in a fast and reproducible manner, without the burden of complex fitting techniques.