在hBN中确定性生成单个B中心的单个转换
Deterministic generation of single B centers in hBN by one-to-one conversion from UV centers
AI总结：
通过原位电致发光监测，研究发现B中心激活与UV中心脱激活存在空间和时间关联，实现了单个发射器的可控生成和选择性脱激活。
摘要：
在六方氮化硼（hBN）中，蓝光发射色心（B中心）因其优异的量子光学性质而备受关注。此外，它们可通过电子束局部激活，适合用于光子器件的自顶向下集成。然而，在缺乏实时监测技术的情况下，激活过程是随机的，其机制仍存在争议。本文实现了一种原位电致发光监测装置，能够检测蓝光和紫外（UV）范围内的单个量子发射器。我们证明了单个B中心的激活与单个在4.1 eV发光的UV中心的脱激活存在空间和时间关联。我们利用检测单个B中心激活事件的能力，展示了仅在每个照射点生成一个发射器的阵列。此外，我们还展示了一种对称技术，用于 heralded 选择性脱激活单个发射器。我们的结果提供了关于B中心微观结构和激活机制的见解，以及其确定性集成的多功能技术。
英文摘要：
Among the variety of quantum emitters in hexagonal boron nitride (hBN), blue-emitting color centers, or B centers, have gathered a particular interest owing to their excellent quantum optical properties. Moreover, the fact that they can be locally activated by an electron beam makes them suitable for top-down integration in photonic devices. However, in the absence of a real-time monitoring technique sensitive to individual emitters, the activation process is stochastic in the number of emitters, and its mechanism is under debate. Here, we implement an in-situ cathodoluminescence monitoring setup capable of detecting individual quantum emitters in the blue and ultraviolet (UV) range. We demonstrate that the activation of individual B centers is spatially and temporally correlated with the deactivation of individual UV centers emitting at 4.1 eV, which are ubiquitous in hBN. We then make use of the ability to detect individual B center activation events to demonstrate the controlled creation of an array with only one emitter per irradiation site. Additionally, we demonstrate a symmetric technique for heralded selective deactivation of individual emitters. Our results provide insights into the microscopic structure and activation mechanism of B centers, as well as versatile techniques for their deterministic integration.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
