Uniform microwave field formation for control of ensembles of negatively charged nitrogen vacancy in diamond
arXiv:2605.13267 · doi:10.1063/5.0203162
Abstract
The 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.
arXiv commentAccepted manuscript with supplementary material
References in corpus (19)
- Sensing electric fields using single diamond spins
- Magnetometry with nitrogen-vacancy defects in diamond
- Coherent coupling of a superconducting flux-qubit to an electron spin ensemble in diamond
- A subpicotesla diamond magnetometer
- Simultaneous Broadband Vector Magnetometry Using Solid-State Spins
- Robust dynamical decoupling with concatenated continuous driving
- Broadband, large-area microwave antenna for optically-detected magnetic resonance of nitrogen-vacancy centers in diamond
- Magnetic imaging with an ensemble of Nitrogen Vacancy centers in diamond
- Microwave device characterisation using a widefield diamond microscope
- Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy
- Narrow-bandwidth sensing of high-frequency fields with continuous dynamical decoupling
- Quantum simulations and experiments on Rabi oscillations of spin qubits: intrinsic {\sl vs} extrinsic damping
- Optimized Planar Microwave Antenna for Nitrogen Vacancy Center based Sensing Applications
- Broadband loop gap resonator for nitrogen vacancy centers in diamond
- Demonstration of vector magnetic field sensing by simultaneous control of nitrogen-vacancy centers in diamond using multi-frequency microwave pulses
- Broadband Excitation by Chirped Pulses: Application to Single Electron Spins in Diamond
- Glass-patternable notch-shaped microwave architecture for on-chip spin detection in biological samples
- Fast coherent control of an NV- spin ensemble using a KTaO3 dielectric resonator at cryogenic temperatures
- Variable bandwidth, high efficiency microwave resonator for control of spin-qubits in nitrogen-vacancy centers