论文标题
钻石广场宽松计，快速，宽带磁共振光谱法
Fast, broad-band magnetic resonance spectroscopy with diamond widefield relaxometry
论文作者
论文摘要
我们提出了常规电子顺磁共振（EPR）光谱设备的替代方案。避免使用笨重的磁铁和磁铁设备，我们使用了钻石表面的氮气呈中心合奏的光致发光。监视他们的放松时间（或T1），我们检测到了他们的跨屏亚化化合物。另外，EPR光谱通过局部磁场梯度编码。在记录以前的数据的每个数据点需要12分钟的情况下，我们能够一次以3美元的价格重建一个完整的频谱； \ textrm {秒} $，范围从$ 3 $到$ 11 \; \ textrm {gauss} $。就灵敏度而言，仅$ 0.5 \; $ 1 \的μ\ textrm {l} $; μ\ textrm {m} $ hexaaquacopper（ii）离子溶液是必要的。
We present an alternative to conventional Electron Paramagnetic Resonance (EPR) spectroscopy equipment. Avoiding the use of bulky magnets and magnetron equipment, we use the photoluminescence of an ensemble of Nitrogen-Vacancy centers at the surface of a diamond. Monitoring their relaxation time (or T1), we detected their cross-relaxation with a compound of interest. In addition, the EPR spectra are encoded through a localized magnetic field gradient. While recording previous data took 12 minutes per data point with individual NV centers, we were able to reconstruct a full spectrum at once in $3\; \textrm{seconds}$, over a range from $3$ to $11\; \textrm{Gauss}$. In terms of sensitivity, only $0.5\; μ\textrm{L}$ of a $1\; μ\textrm{M}$ hexaaquacopper (II) ion solution was necessary.
