论文标题
同位素转移$^5 $ f和兴奋
Isotope Shifts in the Metastable a$^5$F and Excited y$^5$G$^\circ$ Terms of Atomic Titanium
论文作者
论文摘要
我们测量和分析同位素在亚稳态的A $^5 $ F和激动的y $^5 $ g $^\ circ $中性钛的术语之间转移的多个过渡，并使用饱和吸收光谱探测空心阴极灯中的钛蒸气。我们将五$ j \ j \ j+1 $和四个$ j \ to j $ to j $ totlets（$^{46} $ ti，$^{48} $ ti和$^{50} $ ti）中的三个$ j \ to j $转换。这些过渡的同位素变化使我们能够确定A $^5 $ f和y $^5 $ g $ g $^\ circ $ lacte yexply本身的精细结构分裂中的同位素依赖性变化。结合现有的钛核核电荷半径的知识，我们得出了特定的质量和场移，这分别是由核处的相关电子运动和电子密度引起的，并进一步观察到每个相关的$ J $依赖性变化。我们的结果可以洞悉钛（如钛）等过渡金属原子的电子和核结构，还表征了光学转变，这些转变可能允许对过渡金属物种的超电压气体进行光学操纵。
We measure and analyze the isotope shifts the multiplet of transitions between the metastable a$^5$F and excited y$^5$G$^\circ$ terms of neutral titanium by probing a titanium vapor in a hollow cathode lamp using saturated absorption spectroscopy. We resolve the five $J\to J+1$ and the four $J\to J$ transitions within the multiplet for each of the the three $I=0$ stable isotopes ($^{46}$Ti, $^{48}$Ti, and $^{50}$Ti). The isotope shifts on these transitions allow us to determine the isotope-dependent variation in the fine-structure splitting of the a$^5$F and y$^5$G$^\circ$ levels themselves. Combined with existing knowledge of the nuclear charge radii of titanium nuclei, we derive the specific mass and field shifts, which arise from correlated electronic motion and electronic density at the nucleus respectively, and further observe a strong $J$-dependent variation in each. Our results yield insight into the electronic and nuclear structure of transition metal atoms like titanium, and also characterize optical transitions that may allow for optical manipulation of ultracold gases of transition metal species.
