Title
Mechanism of LIPSS Formation under the Influence of Plasma Lens during Femtosecond Laser Processing
Authors
[ 1 ] Instytut Technologii Mechanicznej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee
Scientific discipline (Law 2.0)
Year of publication
2024
Article type
scientific article
Publication language
english
Keywords
EN
- Laser
- Femtosecond
- LIPSS
- Ablation
- Modelling
Abstract
EN The mechanism of formation of laser-induced periodic surface structures (LIPSS) remains unexplored and attracts the attention of researchers. We study the redistribution of laser beam energy along the path from the radiation source to the target surface, specifically in the layer of ionized ablation products formed during processing above the target surface. We take the cloud of ablation products above the target surface as a kind of lens, the material of which has a refractive index different from the refractive index of the surrounding medium. In this article, we consider the process of energy redistribution when a laser beam passes through a plasma lens formed above the target and conclude that LIPSS can be formed due to such a distribution mechanism. The process of femtosecond laser action is considered using computer modeling of the process of laser beam propagation and subsequent temperature ablation of matter from the target surface.
Pages (from - to)
7 - 17
Open Access Mode
publisher's website
Open Access Text Version
final published version
Ministry points / journal
20
System created by Poznań University of Technology
and Poznan Supercomputing and Networking Center
Log in through eKonto to add to SIS