Transmission of 3 keV [Formula presented] Ions through Nanocapillaries Etched in Polymer Foils: Evidence for Capillary Guiding

N. Stolterfoht, J. H. Bremer, V. Hoffmann, R. Hellhammer, D. Fink, A. Petrov, B. Sulik

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We report unprecedented transmission experiments of 3 keV [Formula presented] ions through capillaries of 100 nm diameter and [Formula presented] length produced by etching ion tracks in a polymer foil. We studied foils tilted up to [Formula presented] for which the incident ions are forced to interact with the capillary surface. Surprisingly, the majority of [Formula presented] ions were found to survive the surface scattering events in their initial charge state. The angular distributions of the transmitted particles indicate propagation of the [Formula presented] ions along the capillary axis. This capillary guiding of the [Formula presented] ion provides evidence that the inner walls of the capillaries become charged and electron capture from the surface is suppressed in a self-organizing process.

Original languageEnglish
Number of pages1
JournalPhysical review letters
Volume88
Issue number13
DOIs
Publication statusPublished - Jan 1 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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