Thermal behavior of thin metal films irradiated by shaped femtosecond pulse sequences laser

A. M. Chen, Y. F. Jiang, L. Z. Sui, D. J. Ding, H. Liu, M. X. Jin

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

A numerical solution of the two-temperature model has been performed up to the shaped femtosecond pulse sequences heated metal target. The two-temperature model is used to analyze the shaped femtosecond pulse sequences with the following major conclusions. We confirm the distinctly different results on the different shaped femtosecond pulse sequences. As the number of shaped femtosecond pulses increases, the nonequilibrium state between electrons and phonons gradually disappears, the highest transient electron temperature is lowered and the thermolization time is prolonged, the electron heat conductivity remains higher because of the effect of incubation on the electron temperature, which preserves the advantages of ultrashort lasers. The shaped femtosecond pulse sequences can increase the efficiency in ablation and micromachining.

Original languageEnglish
Pages (from-to)2192-2197
Number of pages6
JournalOptics Communications
Volume284
Issue number8
DOIs
Publication statusPublished - 2011 Apr 15

Keywords

  • Laser ablation
  • Shaped pulse laser
  • Two-temperature model

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Thermal behavior of thin metal films irradiated by shaped femtosecond pulse sequences laser'. Together they form a unique fingerprint.

Cite this