Lindebner F, Kautsch A, Koch M, Ernst WE. Laser ionization and spectroscopy of Cu in superfluid helium nanodroplets.
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 2014;
365-366:255-259. [PMID:
25844053 PMCID:
PMC4376070 DOI:
10.1016/j.ijms.2013.12.022]
[Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 12/18/2013] [Accepted: 12/19/2013] [Indexed: 06/04/2023]
Abstract
Mass and optical spectroscopic methods are used for the analysis of copper (Cu) atoms and clusters doped to helium nanodroplets (HeN). A two-color resonant two-photon ionization scheme is applied to study the Cu 2P[Formula: see text]S1/2 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 n clusters up to Cu7 inside helium nanodroplets was observed by means of electron impact ionization mass spectroscopy.
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