论文标题
在静水压力下，SIV和GEV颜色中心的光学特性高达180 GPa
Optical properties of SiV and GeV color centers in nanodiamonds under hydrostatic pressures up to 180 GPa
论文作者
论文摘要
我们研究了纳米登蒙蒙德人在静水压力下的硅胶囊（SIV）和锗胶囊（GEV）颜色中心的光学性质。通过SI或GE掺杂的血浆辅助化学蒸气沉积合成纳米原子，并在我们的实验中加压在钻石砧细胞中。在静水压力下，我们分别观察到SIV和GEV零孔线线的蓝移17 THz（70 MEV）和78 THz（320 MEV）。这些测得的压力诱导的偏移与从头算的计算非常吻合，这些计算考虑了基于钻石状态方程的晶格压缩，并扩展到锡胶（SNV）中心的情况。这项工作为在极端压力下用作量子传感器的使用提供了指导，这些量子将利用其内在反转形式结构引起的特定光学和自旋特性。
We investigate the optical properties of silicon-vacancy (SiV) and germanium-vacancy (GeV) color centers in nanodiamonds under hydrostatic pressure up to 180 GPa. The nanodiamonds were synthetized by Si or Ge-doped plasma assisted chemical vapor deposition and, for our experiment, pressurized in a diamond anvil cell. Under hydrostatic pressure we observe blue-shifts of the SiV and GeV zero-phonon lines by 17 THz (70 meV) and 78 THz (320 meV), respectively. These measured pressure induced shifts are in good agreement with ab initio calculations that take into account the lattice compression based on the equation of state of diamond and that are extended to the case of the tin-vacancy (SnV) center. This work provides guidance on the use of group-IV-vacancy centers as quantum sensors under extreme pressures that will exploit their specific optical and spin properties induced by their intrinsic inversion-symmetric structure.
