Modelling of the mechanical and thermal effects induced by excimer laser irradiation of a copper sheet

Tosto Sebastiano

Research output: Contribution to journalArticle

Abstract

The paper concerns the mechanical and thermal effects induced by a high power XeCl excimer laser pulse focused on to a sheet of polycrystalline copper 0.01 cm thick. The pulse had a triangular time profile with a total energy of 4 J and a length of 200 us. The irradiation caused a local dome-shaped deformation of the sheet, similar to that produced by a rigid pin loading a surface. A mechanical model is proposed to correlate the local strain induced with the local stress acting on the surface. Also, a thermal model was used to calculate the recoil force due to the high ablation reate produced by the laser pulse. A comparison between these models shows that the high ablation rate is the responsible force for the deformation of the sheet.
Original languageEnglish
Pages (from-to)235 - 246
Number of pages12
JournalLasers in Engineering
Volume5
Issue number3
Publication statusPublished - 1996
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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