论文标题
CD I的高分辨率同位素转移光谱
High-resolution isotope-shift spectroscopy of Cd I
论文作者
论文摘要
我们介绍$ {}^{1} \ text {p} _1 \ leftarrow {}^{1} \ text {s} _0 $（$ 229 $ nm）和$ {}^{3}^{3} \ text {p} _1 _1 {1} {1 （$ 326 $ nm）所有天然存在的镉同位素的过渡。费尔米管同位素的同位素移位和超精细间隔的精度为3.3MHz。 We find that quantum interference in the laser-induced fluorescence spectra of the ${}^{1}\text{P}_1 \leftarrow {}^{1}\text{S}_0$ transition causes an error of up to 29(5)MHz in determining the hyperfine splitting, when not accounted for with an appropriate model.使用国王图分析，我们提取场和质量偏移参数，并确定费米子的核电荷半径差异。 $^1 \ text {p} _1 $状态的寿命通过测量$ {}^{1} \ text {p} _1 \ leftarrow {}^{}^{}^{1}^{1} \ text {s} {s} _0 _0 $ transition来确定为1.60（5）ns。这些结果解决了以前的测量之间的显着差异。
We present absolute frequency measurements of the ${}^{1}\text{P}_1 \leftarrow {}^{1}\text{S}_0$ ($229$nm) and ${}^{3}\text{P}_1 \leftarrow {}^{1}\text{S}_0$ ($326$nm) transitions for all naturally occurring isotopes of cadmium. The isotope shifts and hyperfine intervals of the fermionic isotopes are determined with an accuracy of 3.3MHz. We find that quantum interference in the laser-induced fluorescence spectra of the ${}^{1}\text{P}_1 \leftarrow {}^{1}\text{S}_0$ transition causes an error of up to 29(5)MHz in determining the hyperfine splitting, when not accounted for with an appropriate model. Using a King-plot analysis, we extract the field- and mass-shift parameters and determine nuclear charge radius differences for the fermions. The lifetime of the $^1\text{P}_1$ state is determined to be 1.60(5)ns by measuring the natural linewidth of the ${}^{1}\text{P}_1 \leftarrow {}^{1}\text{S}_0$ transition. These results resolve significant discrepancies among previous measurements.
