Laser cooling of externally produced Mg ions in a Penning trap for sympathetic cooling of highly charged ions
Laser cooling of externally produced Mg ions in a Penning trap for sympathetic cooling of highly charged ions
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DOI：
10.1103/physreva.87.033423
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发表时间：
2012-11
影响因子：
2.9
通讯作者：
Z. Andelkovic;R. Cazan;W. Nortershauser;S. Bharadia;D. Segal;R. Thompson;R. Johren;J. Vollbrecht;V. Hannen;M. Vogel
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文献类型：
--
作者：
Z. Andelkovic;R. Cazan;W. Nortershauser;S. Bharadia;D. Segal;R. Thompson;R. Johren;J. Vollbrecht;V. Hannen;M. Vogel
我们对潘宁阱中的镁离子进行了激光冷却。外部产生的离子在飞行中被捕获，储存和激光冷却。垂直于冷却激光轴观察到激光诱导荧光。光学检测下降到单离子水平连同电子检测的离子振荡内的潘宁阱已被用来获取信息的离子存储时间，离子数和离子温度。已经观察到离子晶体形成的证据。这些调查是一个重要的先决条件，同时存储的高电荷离子和精确的禁戒跃迁的激光光谱的共振冷却。
We have performed laser cooling of Mg ions confined in a Penning trap. The externally produced ions were captured in flight, stored and laser cooled. Laser-induced fluorescence was observed perpendicular to the cooling laser axis. Optical detection down to the single ion level together with electronic detection of the ion oscillations inside the Penning trap have been used to acquire information on the ion storage time, ion number and ion temperature. Evidence for formation of ion crystals has been observed. These investigations are an important prerequisite for sympathetic cooling of simultaneously stored highly-charged ions and precision laser spectroscopy of forbidden transitions in these.