Technical Physics

, Volume 50, Issue 6, pp 809–811 | Cite as

Effect of laser radiation on the morphology and emissivity of nanodimensional carbon films

  • A. N. Obraztsov
  • A. P. Volkov
  • G. M. Mikheev
  • A. G. Chakhovskoi
  • V. V. Roddatis
  • A. V. Garshev
Short Communications

Abstract

The effect of high-power pulsed laser radiation on the morphology and field emission of electrons from nanocrystalline graphite films is studied. The films are prepared by dc-discharge-activated CVD from a hydrogen-methane mixture. The material of the films partly evaporates under the action of the laser pulse. Threshold laser power densities at which the emissivity and geometry of the cathode surface change are determined. A direct correlation between the morphology and emission characteristics is shown to be absent.

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Copyright information

© Pleiades Publishing, Inc. 2005

Authors and Affiliations

  • A. N. Obraztsov
    • 1
  • A. P. Volkov
    • 1
  • G. M. Mikheev
    • 2
  • A. G. Chakhovskoi
    • 3
  • V. V. Roddatis
    • 1
  • A. V. Garshev
    • 1
  1. 1.Moscow State UniversityVorob’evy Gory, MoscowRussia
  2. 2.Institute of Applied Mechanics, Ural DivisionRussian Academy of SciencesIzhevskRussia
  3. 3.University of CaliforniaDavisUSA

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