Beam-plume interaction in laser materials processing

  • MATSUNAWA A.
    Welding Research Institute, Osaka University
  • OHNAWA Toshio
    Graduate School, Osaka University (Present office)Mitsubishi Electric Co.

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抄録

The paper describes the energy dissipation mechanism during beam-plume/plasma interaction. From spectroscopic and other optical measurements of Ti-plume induced by pulsed YAG laser shot, it has been concluded that major energy dissipation processes in plume are ; 1) Absorption of photons in a plume/plasma by Inverse Bremsstrahlung, and 2) Rayleigh scattering of incident beam by ultra fine particles formed in the plume. Both processes have strong dependence on wavelength of radiation and the paper gives the generalized idea of energy loss of laser beam in laser induced plume/plasma.

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詳細情報

  • CRID
    1574231877022639872
  • NII論文ID
    110006486928
  • NII書誌ID
    AA00867058
  • ISSN
    03874508
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

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