Manipulation of Individual Hyperfine States in Cold Trapped Molecular Ions and Application to HD+ Frequency Metrology
Manipulation of Individual Hyperfine States in Cold Trapped Molecular Ions and Application to HD+ Frequency Metrology
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DOI：
10.1103/physrevlett.108.183003
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发表时间：
2012-05-03
影响因子：
8.6
通讯作者：
Schiller, S.
中科院分区：
文献类型：
--
作者：
Bressel, U.;Borodin, A.;Schiller, S.
先进的技术操纵的内部状态，在原子物理学的标准，证明了带电分子物种的第一次。我们解决个人的超精细态的振转能级的双原子离子通过光激发个人的超精细跃迁，并实现控制转移到一个选定的超精细态的人口。我们使用分子氢离子（HD+）作为模型系统，并采用一种新的频率梳为基础的，连续波5 μ m激光光谱仪。所实现的光谱分辨率是迄今为止在光学域中对分子离子物种获得的最高分辨率。因此，我们也能够对分子的从头算理论进行最精确的测试。
Advanced techniques for manipulation of internal states, standard in atomic physics, are demonstrated for a charged molecular species for the first time. We address individual hyperfine states of rovibrational levels of a diatomic ion by optical excitation of individual hyperfine transitions, and achieve controlled transfer of population into a selected hyperfine state. We use molecular hydrogen ions (HD+) as a model system and employ a novel frequency-comb-based, continuous-wave 5 mu m laser spectrometer. The achieved spectral resolution is the highest obtained so far in the optical domain on a molecular ion species. As a consequence, we are also able to perform the most precise test yet of the ab initio theory of a molecule.