Product Code: ICA10_N106

Review of Mechanisms of Direct Laser Surface Nanostructuring Technological Materials
Authors:
V.N. TOKAREV, A.M.Prokhorov General Physics Institute, Russ.Acad.Sci.; Moscow Russia
V.A. Shmakov, A.M. Prokhorov General Physics Institute, Russ.Acad. Sci., Sergei Mikolutski, Institute of Electrophysics and Energetics; Moscow Russia
V.A. Yamschikov, Institute for Electrophysics and Energetics, Russ.Acad.Sci.; Sankt-Peterburg Russia
R.R. Khasaya, Institute for Electrophysics and Electric Power, Russian Academy of Sciences; Sankt-Peterburg Russia
S.I. Mikolutski, Institute for Electrophysics and Energetics Russian Academy of Sciences; Sankt-Peterburg Russia
S.V. Nebogatkin, Institute for Electrophysics and Energetics, Russ. Acad. Sci.; Sankt-Peterburg Russia
Vladislav Khomich, Institute for Electrophysics and Energetics, Russ. Acad. Sci.; Sankt-Peterburg Russia
Presented at ICALEO 2010

In the given paper recent results of authors on development of physical mechanisms and theoretical models of direct laser surface nanostructuring are reviewed. The term direct means here that surface is modified in the simplest way with a single laser beam instead of two beams crossed to form an interference pattern on a surface or in a volume of the material, without using any masks, without using a combination of laser beam with an atomic force microscope tip or optical fiber tip for writing profiles, as it was in a number of previous papers on laser nanostructuring. The attention is paid to nanosecond lasers, as they are cheaper and simpler in use compared to pico-, and femtosecond lasers, which is important for the development of further technological applications. The formation of so-called non-resonant structures, whose period is not directly related to laser radiation wavelength, is considered. The discussed theoretical models are developed for different mass transfer processes (with or without melting, depending on radiation intensity and a material) (i) laser-induced vaporization, (ii) etching, (iii) deposition, (iv) a combined action of melting and vaporization, (v) melting without intense vaporization, and (vi) non-linear relaxation of laser-induced thermal stresses in absence of both melting and vaporization. Corresponding experimental illustrations are given for various materials metals, semiconductors, ceramics and diamond film.
Authors thank the Federal Agency on Science and Innovations for financial support of the work (Contract No. 02.740.11.0411).