Laser ablation modeling for Gaussian and tophat beam profiles using a two-temperature model

Authors

  • Joy Kristelle C. De Mata ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
  • Lean L. Dasallas ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
  • Wilson O. Garcia ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Laser ablation of material depends on the laser parameter used. In most cases, pulsed lasers with Gaussian beam profiles are used. However, due to the energy waste at the tail of the Gaussian beam profile, a tophat beam can be used to reduce this negative effect. In this study, a two-temperature model (TTM) was utilized to investigate the effect of the beam profile on the ablation of copper target. Tophat beam resulted into a higher ablation capacity as compared to a Gaussian beam. In addition, numerical findings show the logarithmic dependence of the amount of ablated materials on the laser fluence for both beam profiles.

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Issue

Article ID

SPP-2022-PA-15

Section

Poster Session A (Materials Science, Instrumentation, and Photonics)

Published

2022-10-05

How to Cite

[1]
JKC De Mata, LL Dasallas, and WO Garcia, Laser ablation modeling for Gaussian and tophat beam profiles using a two-temperature model, Proceedings of the Samahang Pisika ng Pilipinas 40, SPP-2022-PA-15 (2022). URL: https://proceedings.spp-online.org/article/view/SPP-2022-PA-15.