New energetics and Modern Technologies

Mechanisms of the formation of surface nanorelief upon laser ablation

P. S. Kuleshov^ab, S. I. Mikolutskiy^c, Yu. V. Khomich<sup>c

a</sup> Central Institute of Aviation Motors, State Scientific Center of Russian Federation, Moscow
^b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
^c Institute of Problems of Electrophysics of the Russian Academy of Sciences, St. Petersburg

Abstract: Two mechanisms of surface nanorelief formation on a metal substrate upon laser ablation are considered. They are based on the theory of nucleation in the process of crystallization and the resonance-wave theory of capillary deformation processes. Using experimental examples, it is shown that both the mechanisms not only do not contradict but even complement each other. Based on the hierarchy of characteristics times, the influence of energy parameters of laser pulses on dimensions of the forming nanostructures is analyzed.

UDC: 669:532.6

Received: 11.08.2023
Revised: 18.10.2023
Accepted: 04.12.2023

DOI: 10.31857/S0040364424010135

 English version: High Temperature, 2024, 62:1, 94–101