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arXiv 1301.2113physics.atom-phphysics.chem-ph
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极性分子在行波减速器中的静态捕获

Static trapping of polar molecules in a traveling wave decelerator

Marina Quintero-Pérez, Paul Jansen, Thomas E. Wall, Joost E. van der Berg, Steven Hoekstra, Hendrick L. Bethlem

摘要:

我们目前的实验减速和捕获氨分子使用的组合的斯塔克减速器和行波减速器。在行波减速器中,通过施加振荡高电压的一系列环形电极产生移动电势。通过降低施加电压的频率,限制在移动阱中的分子被减速并使其静止。由于分子被限制在一个真正的3D阱中,这种新型的减速几乎没有损失,从而大大改善了通常的斯塔克减速技术。通过使用快速HV放大器放大任意波发生器的输出来产生必要的电压,从而使我们能够对捕获的分子进行很好的控制。我们通过实验说明了这一点,在这些实验中,我们对被困的NH3和ND3分子进行了冷却,并共振激发了它们的运动。

英文摘要:

We present experiments on decelerating and trapping ammonia molecules using a combination of a Stark decelerator and a traveling wave decelerator. In the traveling wave decelerator a moving potential is created by a series of ring-shaped electrodes to which oscillating high voltages are applied. By lowering the frequency of the applied voltages, the molecules confined in the moving trap are decelerated and brought to a standstill. As the molecules are confined in a true 3D well, this new kind of deceleration has practically no losses, resulting in a great improvement on the usual Stark deceleration techniques. The necessary voltages are generated by amplifying the output of an arbitrary wave generator using fast HV-amplifiers, giving us great control over the trapped molecules. We illustrate this by experiments in which we adiabatically cool trapped NH3 and ND3 molecules and resonantly excite their motion.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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