Modified Split-Ring Resonators for Efficient and Homogeneous Microwave Control of Large Volume Spin Ensembles
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-05-20 |
| Journal | IEEE Sensors Journal |
| Authors | Yachel Ben-Shalom, Amir Hen, Nir BarāGill |
| Institutions | Hebrew University of Jerusalem, Elbit Systems (Israel) |
| Citations | 1 |
Abstract
Section titled āAbstractāQuantum sensing using local defects in solid-state systems has gained significant attention over the past several years, with impressive results demonstrated both in Academia and in Industry. Specifically, employing large volume and high density ensembles for beyond state-of-the-art sensitives is of clear interest. A major obstacle for achieving such record sensitivities is associated with the need to realize strong, homogeneous driving of the sensor defects. Here we focus on high-frequency microwave sensing using nitrogen-vacancy centers in diamond, and develop a modified split-ring resonator design to address this issue. We demonstrate enhanced drive strengths and homogeneities over large volumes compared to previous results, with prospects for enabling the desired sensitivities. We reach Rabi frequencies of up to 18 [MHz] with an efficiency ratio of 2 [Gauss/ āWatt], along with an inhomogeneity of < 0.7% in a volume of 0.1 mm <sup xmlns:mml=āhttp://www.w3.org/1998/Math/MathMLā xmlns:xlink=āhttp://www.w3.org/1999/xlinkā>3</sup> . This structure also has a narrow form factor that allows for efficient optical coupling and fluorescence collection.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2013 - Electronic Warfare and Radar Systems Engineering Handbook
- 2022 - Comparison of noise temperature of Rydberg-atom and electronic microwave receivers