Modeling of Laser-Induced Surface Structures Generation due to Surface Plasmon-Polariton Excitation Текст научной статьи по специальности «Нанотехнологии»

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LASER-MATTER INTERACTION

Modeling of Laser-Induced Surface Structures Generation due to Surface

Plasmon-Polariton Excitation

D. S. Ivanov1'2. P.N. Tetekhin3, M.E. Garcia4, B. Rethfeld3, I.N. Zavestovskaya1, A. Kabashin2,

and S. Klimentov2

Ultrashort laser pulses, focused on metal surfaces, can produce Laser-Induced Periodic Surface Structures (LIPSS), which have found a lot of applications in IT- and Bio- technologies. During the laser energy deposition Surface Plasmon Polaritons (SPP) [1] can be excited on a rough material surface. The interference of the plasmons wave and the incoming pulse leads to the redistribution of the laser intensity across the material's surface and the subsequent formation of LIPSS. In this work we propose a combined atomistic-continuum Molecular Dynamics based numerical approach for investigation of LIPSS formation mechanism on metals in super-large simulations [2]. We introduce the corresponding source term description due to SPP in the combined model [3]. The simulation results are directly compared with the experimental data, generated on the same temporal and spatial scales, and analyzed. This allowed to extract the main mechanisms of LIPSS formation. The performed research allows for a possibility for the structures generation with predesigned topological, morphological, and optical properties.

[1] S.A. Maier, Plasmonics, Fundamentals and Applications (Springer, Berlin) (2007).

[2] P.N. Terekhin, J. Oltmanns, A. Blumenstein, D.S. Ivanov, F. Kleinwort, M.E. Garcia, B. Rethfeld, J. Ihlemann, and P. Simon' "Plasmonic nature of periodic surface structures following single laser pulse irradiation, Nanophotonics 11, 359367 (2022).

[3] O. Benhayoun, P. N. Terekhin, B. Rehfeld, D. S. Ivanov, and M. E. Garcia, "Theory for heating of metals assisted by

Surface Plasmon Polaritons", Appl. Sur. Sci. 569, 150427 (2021).

1 Lebedev Physical Institute, 119991 Moscow, Russia 2 Moscow Engineering Physics Institute, 115409 Moscow, Russia 3 Technical University of Kaiserslautern, 67663 Kaiserslautern, Germany 4 University of Kassel, 34132 Kassel, Germany Presenting author e-mail address: ivanov@uni-kassel.de

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