| Issue |
J. Eur. Opt. Society-Rapid Publ.
Volume 20, Number 1, 2024
EOSAM 2023
|
|
|---|---|---|
| Article Number | 27 | |
| Number of page(s) | 10 | |
| DOI | https://doi.org/10.1051/jeos/2024021 | |
| Published online | 26 June 2024 | |
Research Article
The role of absorption mechanism on the optimization of processing commercial polymers under high repetition rate femtosecond laser irradiation
1
I.U. Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, 03690 San Vicente del Raspeig, Spain
2
Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, 03690 San Vicente del Raspeig, Spain
* Corresponding author: dan.puerto@ua.es
Received:
29
January
2024
Accepted:
17
April
2024
The response of three of the most used commercial polymers (poly(vinyl chloride) (PVC), poly(ethylene terephthalate) (PET) and polypropylene (PP)) under irradiation with high repetition rate (1 kHz–1 MHz) femtosecond (450 fs) multi-pulse (N = 10–1500) laser at λ = 343 nm, 515 nm (1.40 J/cm2 for both former wavelengths) and 1030 nm (1.70 J/cm2) is reported, obtaining a study on how the absorption mechanism influences the processing efficiency for these materials. Tunable ablation depth and diameters are accomplished by modifying repetition rates at a constant fluence and number of pulses. The results highlight the role of absorption mechanism, repetition rate ranges and thermal properties of the materials for benefiting ablation efficiency. Furthermore, the use of high repetition rates improves the laser processing, reducing extended thermal effects and increasing ablation uniformity.
Key words: Femtosecond laser / Ablation / Polymers / High-frequency / Thermal effects / Absorption mechanism
© The Author(s), published by EDP Sciences, 2024
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