@conference{
author = "Kovačević, Aleksander G. and Petrović, Suzana and Potočnik, Jelena and Lekić, Marina and Salatić, Branislav and Lazović, Vladimir and Pantelić, Dejan and Jelenković, Branislav",
year = "2021",
abstract = "The interaction of ultrashort laser beam with metal surfaces may induce the generation of periodic structures (LIPSS) with period less than the incoming wavelength, opening wide area of application [1, 2]. The presence of the underneath layer influences the quality of the LIPSS [3] . We have exposed multilayer thin films Ni/Ti, Ni/Pd, W/Ti, Ti/Ta to femtosecond beams of various wavelengths and powers. The interactions have been performed by Mira900 fs laser of Coherent. Detailed surface morphology after irradiation was examined firstly by optical microscopy, and then by scanning electron microscopy (JEOL JSM-7500F, Tokyo, Japan). Two types of structures have been noticed. Their appearance differ in the direction against the polarization direction, in pronounced ablation and in the spatial period, enabling their grouping into LIPSS of higher and lower spatial frequencies. Surface plasmon polariton is seen as the most probable cause of periodic distribution of energy at the surface and consequently to LIPSS.",
publisher = "Belgrade : Institute of Physics",
journal = "14th Photonics Workshop : Conference : Book of abstracts; March 14-17, 2021; Kopaonik, Serbia",
title = "Laser-induced parallel structures on multilayer thin films of Ni, Pd, Ti, Ta and W",
pages = "13",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11087"
}