论文标题
通过载体到光子转换成像钻石中的深色电荷发射器
Imaging dark charge emitters in diamond via carrier-to-photon conversion
论文作者
论文摘要
颜色中心在宽带半导体中的应用在纳米级传感和量子信息处理中的应用很大程度上取决于我们对周围晶体晶格的了解，这通常被材料可以托管的无数点缺陷所掩盖。在这里，我们从钻石中的钻石中的一个负电荷的氮胶菌（NV-）中心监测荧光，因为我们照亮了其附近。相邻点缺陷对激发光束敏感的循环电荷状态转换导致依赖于位置的光生成载体流，其探针捕获的捕获会导致荧光变化。这种“电荷到photon”转换方案使我们能够对探针NV周围的其他单个点缺陷进行成像，包括非荧光的“单付点发射器”，否则这些发射器否则不会被忽略。鉴于颜色中心光染色的无处不在，这种策略可能会发现钻石以外的物质系统的扩展。
The application of color centers in wide-bandgap semiconductors to nanoscale sensing and quantum information processing largely rests on our knowledge of the surrounding crystalline lattice, often obscured by the countless classes of point defects the material can host. Here we monitor the fluorescence from a negatively charged nitrogen-vacancy (NV-) center in diamond as we illuminate its vicinity. Cyclic charge state conversion of neighboring point defects sensitive to the excitation beam leads to a position-dependent stream of photo-generated carriers whose capture by the probe NV- leads to a fluorescence change. This "charge-to-photon" conversion scheme allows us to image other individual point defects surrounding the probe NV, including non-fluorescent "single-charge emitters" that would otherwise remain unnoticed. Given the ubiquity of color center photo-chromism, this strategy may likely find extensions to material systems other than diamond.
