Uniform microwave field formation for control of ensembles of negatively charged nitrogen vacancy in diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-10-01 |
| Journal | Review of Scientific Instruments |
| Authors | Oleg Rezinkin, Marina Rezinkina, T. Kitamura, R. Paul, Fedor Jelezko |
| Institutions | National Technical University āKharkiv Polytechnic Instituteā, UniversitƤt Ulm |
| Citations | 2 |
Abstract
Section titled āAbstractāThe homogeneity of the microwave magnetic field is essential in controlling a large volume of ensemble spins, for example, in the case of sensitive magnetometry with nitrogen-vacancy (NV) centers in diamond. This is particularly important for pulsed measurement, where the fidelity of control pulses plays a crucial role in its sensitivity. So far, several magnetic field-forming systems have been proposed, but no detailed comparison has been made. Here, we numerically study the homogeneity of five different systems, including a planar antenna, a dielectric resonator, a cylindrical inductor, a barrel-shaped coil, and a nested barrel-shaped coil. The results of the simulation allowed us to optimize the design parameters of the barrel-shaped field-forming system, which led to significantly improved magnetic field uniformity. To measure this effect, we experimentally compared the homogeneity of a field-forming system having a barrel shape with that of a planar field-forming system by measuring Rabi oscillations of an ensemble of NV centers with them. Significant improvements in inhomogeneity were confirmed in the barrel-shaped coil.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
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