Outer-shell excitation mechanisms and static-mode laser-fluorescence spectroscopy of sputtered atoms

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A review of the literature on atoms sputtered in electronically excited states is given together with a discussion of various mechanisms that have been proposed to account for the observations. The major observational features that have emerged from the older studies may be summarized as follows: (1) the kinetic energies of neutral atoms in highly excited electronic states are 1-2 orders of magnitude greater than E/sub b/, the surface binding energy; (2) relative yields show approximately exponential dependence on excitation energy with characteristic temperatures measured in thousands of degrees; (43) absolute yields are lower by 2-3 orders of magnitude than ... continued below

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Pages: 59

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Gruen, D.M.; Pellin, M.J.; Young, C.E.; Mendelsohn, M.H. & DeWald, A.B. January 1, 1982.

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Description

A review of the literature on atoms sputtered in electronically excited states is given together with a discussion of various mechanisms that have been proposed to account for the observations. The major observational features that have emerged from the older studies may be summarized as follows: (1) the kinetic energies of neutral atoms in highly excited electronic states are 1-2 orders of magnitude greater than E/sub b/, the surface binding energy; (2) relative yields show approximately exponential dependence on excitation energy with characteristic temperatures measured in thousands of degrees; (43) absolute yields are lower by 2-3 orders of magnitude than secondary ion yields which themselves are usually very small compared to total sputtering yields. In many cases, excited-state yields increase 1-2 orders of magnitude as a result of surface oxidation. 83 references.

Physical Description

Pages: 59

Notes

NTIS, PC A04/MF A01; 1.

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  • Inelastic ion, surface collision conference, Middlefart, Denmark, 21 Sep 1982

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  • Other: DE83007657
  • Report No.: CONF-8209101-2
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 6426439
  • Archival Resource Key: ark:/67531/metadc1210977

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  • January 1, 1982

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  • July 5, 2018, 11:11 p.m.

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  • Oct. 23, 2018, 12:20 p.m.

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Gruen, D.M.; Pellin, M.J.; Young, C.E.; Mendelsohn, M.H. & DeWald, A.B. Outer-shell excitation mechanisms and static-mode laser-fluorescence spectroscopy of sputtered atoms, article, January 1, 1982; United States. (digital.library.unt.edu/ark:/67531/metadc1210977/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.