论文标题
单光子发射器在六角硼硝酸盐皱纹中的极化和定位
Polarization and localization of single-photon emitters in hexagonal boron nitride wrinkles
论文作者
论文摘要
二维六角硼硝化硼（H-BN）的颜色中心最近出现为在室温下运行的稳定且明亮的单光子发射器（SPE）。在这项研究中，我们将理论和实验结合在一起，以表明在H-BN中的纳米尺度皱纹选择性形成，其光学偶极优先与皱纹方向排列。通过使用密度函数理论计算，我们发现皱纹曲率在定位基于空置的SPE候选物体并将缺陷对称平面对齐到皱纹方向方面起着至关重要的作用。通过对在H-BN单晶薄片中产生的SPE进行光学测量，我们通过实验确认了皱纹引起的SPE的产生及其在皱纹方向上的极化对齐。我们的结果不仅为控制SPE的原子位置和光学特性提供了新的途径，而且还揭示了H-BN中SPE的晶体学起源，从而极大地增强了其在固态量子光子光子和量子信息处理中的潜力。
Color centers in 2-dimensional hexagonal boron nitride (h-BN) have recently emerged as stable and bright single-photon emitters (SPEs) operating at room temperature. In this study, we combine theory and experiment to show that vacancy-based SPEs selectively form at nano-scale wrinkles in h-BN with its optical dipole preferentially aligned to the wrinkle direction. By using density functional theory calculations, we find that the wrinkle curvature plays a crucial role in localizing vacancy-based SPE candidates and aligning the defects symmetry plane to the wrinkle direction. By performing optical measurements on SPEs created in h-BN single-crystal flakes, we experimentally confirm the wrinkle-induced generation of SPEs and their polarization alignment to the wrinkle direction. Our results not only provide a new route to controlling the atomic position and the optical property of the SPEs but also revealed the possible crystallographic origin of the SPEs in h-BN, greatly enhancing their potential for use in solid-state quantum photonics and quantum information processing.
