Noncovalent force spectroscopy using wide-field optical and diamond-based magnetic imaging

Two-dimensional nuclear magnetic resonance spectroscopy with a microfluidic diamond quantum sensor

Quantum sensors based on nitrogen-vacancy centers in diamond have emerged as a promising detection modality for nuclear magnetic resonance (NMR) spectroscopy owing to their micron-scale detection volume and non-inductive based detection. A remaining challenge is to realize sufficiently high spectral resolution and concentration sensitivity for multidimensional NMR analysis of picoliter sample volumes. Here, we address this challenge by spatially separating the polarization and detection phases of the experiment in a microfluidic platform. We realize a spectral resolution of 0.65 +/- 0.05 Hz, a…

Solution nuclear magnetic resonance spectroscopy on a nanostructured diamond chip

We demonstrate nuclear magnetic resonance (NMR) spectroscopy of picoliter-volume solutions with a nanostructured diamond chip. Using optical interferometric lithography, diamond surfaces were nanostructured with dense, high-aspect-ratio nanogratings, enhancing the surface area by more than a factor of 15 over mm^2 regions of the chip. The nanograting sidewalls were doped with nitrogen-vacancy (NV) centers so that more than 10 million NV centers in a (25 micrometer)^2 laser spot are located close enough to the diamond surface (5 nm) to detect the NMR spectrum of 1 pL of fluid lying within adjac…

利用金刚石中氮-空位中心的单分子尺度磁共振波谱

Single-molecule Scale Magnetic Resonance Spectroscopy using Nitrogen-Vacancy Centers in Diamond

本文综述利用金刚石NV中心实现单分子尺度磁共振的技术进展、性能局限与参数优化，并指出核自旋三维位置完整重建仍是关键挑战。

通过X射线参量下转换在金刚石K边进行极化激元光谱学

Polariton spectroscopy at the diamond K-edge via X-ray parametric down-conversion

本研究通过X射线参量下转换（XPDC）在金刚石K壳层吸收边附近实现了极化激元的光谱分辨测量，揭示了强耦合下的极化激元杂化特征，并提取了高光谱分辨率的折射率。

使用金刚石磁力计进行纵向磁化检测的化学分辨核磁共振波谱

Chemically resolved nuclear magnetic resonance spectroscopy by longitudinal magnetization detection with a diamond magnetometer

本研究提出Ramsey-M_z协议，利用金刚石磁力计检测纵向磁化，在0.32T下实现约350ppb化学位移分辨，验证了其在亚纳升级NMR检测中的高分辨率潜力。

使用飞特斯拉级金刚石磁力仪进行核四极共振谱学

Nuclear quadrupole resonance spectroscopy with a femtotesla diamond magnetometer

本文提出一种基于NV掺杂金刚石薄膜与铁氧体磁通集中器的飞特斯拉级射频磁力仪，在0.35 MHz处灵敏度约70 fT s^{1/2}，并成功检测室温下亚硝酸钠粉末中14N的3.6 MHz核四极共振信号，将金刚石磁力仪灵敏度推进至飞特斯拉级。