Controlled Extraction of Ultracold Ions from a Linear Paul Trap for Nanobeam Production
Controlled Extraction of Ultracold Ions from a Linear Paul Trap for Nanobeam Production
复制标题
从线性保罗阱中受控提取超冷离子用于纳米束生产
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
H. Okamoto
中科院分区：
文献类型：
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作者：
K. Izawa;K. Ito;H. Higaki;H. Okamoto
在接近绝对零的超低温下，限制在线性保罗陷阱中的少量离子沿着陷阱轴排列，形成串库仑晶体。理想库仑晶体的发射率接近于零，这意味着保罗陷阱可以成为极高品质离子束的独特来源。在本文中，我们阐述了原理验证实验的结果，这些实验证明了从用于纳米束生产的传统线性保罗陷阱中无损提取和加速弦库仑晶体的可行性。首先采用多普勒激光冷却技术使一些 40 Ca + 离子结晶，然后切换端电极上的直流电势以从陷阱中发射离子。已证实无需严重加热即可提取超冷离子。相邻离子的时间间隔及其到达检测器的时间可以通过改变电极电位来控制。还进行了三维多粒子模拟，其中...
At ultralow temperatures near absolute zero, a small number of ions confined in a linear Paul trap align along the trap axis forming a string Coulomb crystal. The emittance of an ideal Coulomb crystal is close to zero, which implies that the Paul trap can be a unique source of extremely high quality ion beams. In this paper we address the results of proof-of-principle experiments that demonstrate the feasibility of the nondestructive extraction and acceleration of string Coulomb crystals from a conventional linear Paul trap for nanobeam production. The Doppler laser-cooling technique is employed first to crystallize a few 40 Ca + ions and, then, the DC potentials on the end electrodes are switched to launch the ions from the trap. It is confirmed that ultracold ions can be extracted without serious heating. The time interval of adjacent ions and their arrival time at the detector are controllable by changing the electrode potential. Three-dimensional multiparticle simulations are also carried out, which e...
影响因子：
1.7
作者：
G. Dollinger;V. Hable;A. Hauptner;R. Krücken;P. Reichart;A. Friedl;G. A. Drexler;Thomas Cremer;Steffen Dietzel
通讯作者：
G. Dollinger;V. Hable;A. Hauptner;R. Krücken;P. Reichart;A. Friedl;G. A. Drexler;Thomas Cremer;Steffen Dietzel