تقرير
A Solid-State Microwave Magnetometer with Picotesla-Level Sensitivity
| العنوان: | A Solid-State Microwave Magnetometer with Picotesla-Level Sensitivity |
|---|---|
| المؤلفون: | Alsid, Scott T., Schloss, Jennifer M., Steinecker, Matthew H., Barry, John F., Maccabe, Andrew C., Wang, Guoqing, Cappellaro, Paola, Braje, Danielle A. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics |
| الوصف: | Quantum sensing of low-frequency magnetic fields using nitrogen-vacancy (NV) center ensembles has been demonstrated in multiple experiments with sensitivities as low as $\sim$1 pT/$\sqrt{\text{Hz}}$. To date, however, demonstrations of high-frequency magnetometry in the GHz regime with NV diamond are orders of magnitude less sensitive, above the nT/$\sqrt{\text{Hz}}$ level. Here we adapt for microwave frequencies techniques that have enabled high-performance, low-frequency quantum sensors. Using a custom-grown NV-enriched diamond combined with a noise cancellation scheme designed for high-frequency sensing, we demonstrate a Rabi-sequence-based magnetometer able to detect microwave fields near 2.87 GHz with a record sensitivity of 3.4 pT/$\sqrt{\textrm{Hz}}$. We demonstrate both amplitude and phase sensing and project tunability over a 300 MHz frequency range. This result increases the viability of NV ensembles to serve as microwave circuitry imagers and near-field probes of antennas. Comment: 7 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2206.15440 |
| رقم الأكسشن: | edsarx.2206.15440 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |