论文标题
钻石中的颜色中心与温度有关的第二谐波一代
Temperature-dependent second-harmonic generation from color centers in diamond
论文作者
论文摘要
在红外超短脉冲激光器刺激下，我们研究了氮 - 胶囊（NV）感染的散装钻石中温度依赖的第二谐波产生（SHG）。 SHG强度在温度范围为20-300 $^{\ Circ} C $，这是由于折射率修改引起的相位不匹配。我们发现，通过使用基于变形电位相互作用的带隙变化的模型拟合SHG强度的温度依赖性，光音子散射在NV Diamond中的声音一号超过了NV钻石。这项研究提出了一种创建基于钻石的非线性光学温度传感的有效且可行的方法。
Under infrared ultrashort pulse laser stimulation, we investigated temperature-dependent second-harmonic generation (SHG) from nitrogen-vacancy (NV)-introduced bulk diamond. The SHG intensity decreases in the temperature range of 20-300 $^{\circ}C$, due to phase mismatching caused by refractive index modification. We discovered that optical phonon scattering outperforms acoustic phonon one in NV diamond by fitting the temperature dependence of SHG intensity using a model based on the bandgap change via the deformation potential interaction. This study presents an efficient and viable way for creating diamond-based nonlinear optical temperature sensing.
