تقرير
Quantum Diamond Microscope for Narrowband Magnetic Imaging with High Spatial and Spectral Resolution
| العنوان: | Quantum Diamond Microscope for Narrowband Magnetic Imaging with High Spatial and Spectral Resolution |
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| المؤلفون: | Yin, Zechuan, Tang, Jiashen, Hart, Connor A., Blanchard, John W., Xiang, Xinyan, Satyajit, Saipriya, Bhalerao, Smriti, Tao, Tao, DeVience, Stephen J., Walsworth, Ronald L. |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Physics - Optics, Physics - Instrumentation and Detectors, Quantum Physics |
| الوصف: | The quantum diamond microscope (QDM) is a recently developed technology for near-field imaging of magnetic fields with micron-scale spatial resolution. In the present work, we integrate a QDM with a narrowband measurement protocol and a lock-in camera; and demonstrate imaging of radiofrequency (RF) magnetic field patterns produced by microcoils, with spectral resolution $\approx1$\,Hz. This RF-QDM provides multi-frequency imaging with a central detection frequency that is easily tunable over the MHz-scale, allowing spatial discrimination of both crowded spectral peaks and spectrally well-separated signals. The present instrument has spatial resolution $\approx2\,\mathrm{\mu m}$, field-of-view $\approx300\times300\,\mathrm{\mu m^2}$, and per-pixel sensitivity to narrowband fields $\sim{1}\,$nT$\cdot$Hz$^{-1/2}$. Spatial noise can be reduced to the picotesla scale by signal averaging and/or spatial binning. The RF-QDM enables simultaneous imaging of the amplitude, frequency, and phase of narrowband magnetic field patterns at the micron-scale, with potential applications in real-space NMR imaging, AC susceptibility mapping, impedance tomography, analysis of electronic circuits, and spatial eddy-current-based inspection. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.15450 |
| رقم الأكسشن: | edsarx.2406.15450 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |