Ion deceleration has played a critical role in ion-related research when the ions are produced in the form of a high-energy beam. We present a deceleration method combining electrostatic lens and ion trap technique, which can effectively decelerate ions to energy below the trapping potential of a typical ion trap. The experiments were performed on metastable 1 s 2 s 3 S 1 Li + ions, and demonstrated that the kinetic energy could easily be reduced from ∼450 eV to a few eV, with the latter being confirmed using the Doppler-shifted fluorescence spectra.

中文翻译：

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静电透镜与离子阱技术相结合对亚稳锂离子束的减速

当离子以高能束的形式产生时，离子减速在离子相关的研究中起着至关重要的作用。我们提出了一种结合静电透镜和离子阱技术的减速方法，该方法可以有效地将离子减速至能量低于典型离子阱的捕获势。在亚稳态1 s 2 s 3 S 1 Li +离子上进行了实验，证明了动能很容易从约450 eV降低到几个eV，后者通过多普勒频移荧光光谱得到了证实。