论文标题
钻石中氮空位中心的高温光谱
High temperature spectroscopy of nitrogen vacancy centers in diamond
论文作者
论文摘要
我们研究高温下高温条件下钻石中带负电荷的氮呈胶状中心的光谱。使用磁共振（ODMR）的光学检测来研究自旋共振，并采用光谱来研究辐射过渡。在升高温度后，可见的和红外的辐射衰减强度降低。另外，ODMR共振频率降低，声子发射频率变为较高的波长。对于与非生育衰减相关的能量屏障，将光亮发光的测得强度与Mott-Seitz模型的理论预测拟合的强度。
We study spectroscopy of negatively charged nitrogen-vacancy center in diamond at high temperatures under high vacuum conditions. Spin resonances are studied using optical detection of magnetic resonance (ODMR), and optical spectroscopy is employed to study radiative transitions. Upon increasing the temperature the intensity of radiative decay in visible and infra-red decreased. In addition, the ODMR resonance frequencies were decreased, and the phonon line emission shifted to higher wavelengths. Fitting the measured intensity of photo-luminescence with the theoretical predictions of the Mott-Seitz model yields the value of $0.24 \operatorname{eV}$ for the energy barrier associated with nonradiative decay.
