Lindebner Friedrich, Kautsch Andreas, Koch Markus, Ernst Wolfgang E
Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A-8010 Graz, Austria.
Int J Mass Spectrom. 2014 May 15;365-366:255-259. doi: 10.1016/j.ijms.2013.12.022.
Mass and optical spectroscopic methods are used for the analysis of copper (Cu) atoms and clusters doped to helium nanodroplets (He). A two-color resonant two-photon ionization scheme is applied to study the Cu P[Formula: see text]S ground state transition. The absorption is strongly broadened for Cu atoms submerged inside helium nanodroplets and a comparison with computed literature values is provided. An observed ejection of the dopant from the droplet is triggered upon excitation, populating energetically lower states. The formation of Cu clusters up to Cu inside helium nanodroplets was observed by means of electron impact ionization mass spectroscopy.
采用质量和光谱方法分析掺杂到氦纳米液滴（He）中的铜（Cu）原子和团簇。应用双色共振双光子电离方案研究Cu P[公式：见原文]S基态跃迁。对于浸没在氦纳米液滴中的Cu原子，吸收强烈展宽，并与计算得到的文献值进行了比较。激发时会触发观察到的掺杂剂从液滴中喷射出来，从而填充能量较低的状态。通过电子碰撞电离质谱法观察到氦纳米液滴中直至Cu的Cu团簇的形成。
