Weggler Timo, Ganslmayer Christian, Frank Florian, Eilert Tobias, Jelezko Fedor, Michaelis Jens
Institute for Biophysics and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany.
Institute for Biophysics, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany.
Nano Lett. 2020 May 13;20(5):2980-2985. doi: 10.1021/acs.nanolett.9b04725. Epub 2020 Apr 30.
Absolute knowledge about the magnetic field orientation plays a crucial role in single spin-based quantum magnetometry and the application toward spin-based quantum computation. In this paper, we reconstruct the three-dimensional orientation of an arbitrary static magnetic field with individual nitrogen vacancy (NV) centers in diamond. We determine the polar and the azimuthal angle of the magnetic field orientation relative to the diamond lattice. Therefore, we use information from the photoluminescence anisotropy of the NV, together with a simple pulsed optically detected magnetic resonance experiment. Our nanoscopic magnetic field determination is generally applicable and does not rely on special prerequisites such as strongly coupled nuclear spins or particular controllable fields. Hence, our presented results open up new paths for precise NMR reconstructions and the modulation of the electron-electron spin interaction in EPR measurements by specifically tailored magnetic fields.
关于磁场方向的绝对知识在基于单自旋的量子磁力测量以及向基于自旋的量子计算的应用中起着至关重要的作用。在本文中，我们利用金刚石中的单个氮空位（NV）中心重建任意静态磁场的三维方向。我们确定了相对于金刚石晶格的磁场方向的极角和方位角。因此，我们利用来自NV光致发光各向异性的信息，以及一个简单的脉冲光探测磁共振实验。我们的纳米级磁场测定具有普遍适用性，不依赖于诸如强耦合核自旋或特定可控场等特殊先决条件。因此，我们给出的结果为精确的核磁共振重建以及通过特定定制磁场在电子顺磁共振测量中调制电子 - 电子自旋相互作用开辟了新途径。
