https://doi.org/10.1140/epjs/s11734-025-01599-8
Regular Article
Morphology studies on craters created by femtosecond laser irradiation in UDMA polymer targets embedded with plasmonic gold nanorods
1
HUN-REN Wigner Research Centre for Physics, 1121, Budapest, Hungary
2
University of Pécs, Pecs, Hungary
3
Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, 1111, Budapest, Hungary
4
Department of Biomaterials and Prosthetic Dentistry, Faculty of Dentistry, University of Debrecen, 4032, Debrecen, Hungary
5
Department of Inorganic and Analytical Chemistry, University of Szeged, 6720, Szeged, Hungary
6
Institute for Physics, Babeş Bolyai University, 3400, Cluj-Napoca, Romania
7
Complexity Science Hub, 1080, Vienna, Austria
8
Department of Physics and Technology, Bergen University, 5020, Bergen, Norway
9
Csernai Consult, 5119, Bergen, Norway
10
Hungarian Academy of Sciences, 1051, Budapest, Hungary
a
szokol.agnes@wigner.hun-ren.hu
Received:
19
December
2024
Accepted:
13
March
2025
Published online:
3
April
2025
The effect of embedded plasmonic gold nanoparticles on the crater morphology was studied in 160 µm-thick UDMA–TEGDMA copolymer films irradiated by femtosecond single pulses of a Ti:Sa laser. The plasmonic absorption of the embedded gold nanorods had a resonance at the wavelength of the laser. It was observed that by increasing the laser intensity the diameter of the craters decreased, while the depth of the craters increased. In addition, the crater depths were significantly higher in the presence of gold nanorods. A threshold intensity of 1.5·1017 W/cm2 has been determined, above which a doubled roughness and sevenfold increased crater volume was observed in the polymer containing gold nanorods.
© The Author(s) 2025
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