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Dynamic Observation Of Laser-Ablated Carbon Particles Using Time-Resolved X-Ray Absorption Spectroscopy

Author

Listed:
  • A. MIYASHITA

    (Department of Materials Development, JAERI Takasaki, 1233 Watanuki, Takasaki, Gunma 370–12, Japan)

  • T. OHYANAGI

    (Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305, Japan)

  • O. YODA

    (Department of Materials Development, JAERI Takasaki, 1233 Watanuki, Takasaki, Gunma 370–12, Japan)

  • K. MURAKAMI

    (Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305, Japan)

Abstract

Time- and space-resolved characteristics of laser-ablated carbon particles were studied by x-ray absorption spectroscopy. Absorption peaks from the1s→2ptransition of neutral carbon atom(C0),C−,C+, andC2+ions were observed, An absorption peak from1s→π*and a broad absorption maximum from the1s→σ*transition of small clusters were also observed. Neutral carbon,C−,C+, and small carbon clusters were emitted from the sample long after laser irradiation. Spatial distributions of laser-ablated carbon particles in the localized helium-gas environment were measured. In the helium-gas environment, the ablation plume was depressed by the helium cloud generated on the top of the ablation plume.

Suggested Citation

  • A. Miyashita & T. Ohyanagi & O. Yoda & K. Murakami, 1996. "Dynamic Observation Of Laser-Ablated Carbon Particles Using Time-Resolved X-Ray Absorption Spectroscopy," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 191-195.
    • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96000383
    DOI: 10.1142/S0218625X96000383
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