Semiconductor Physics, Quantum Electronics & Optoelectronics, 20 (1), P. 048-054 (2017).
DOI: https://doi.org/10.15407/spqeo20.01.048

Micro- and nanostructuring of metal surfaces with polarized femtosecond laser pulses
N.G. Zubrilin1, I.V. Blonskiy1, I.M. Dmitruk1,2, O.E. Dombrovskiy1, N.I. Berezovska2, V.I. Stiopkin1

1Institute of Physics, NAS of Ukraine, 46, prospect Nauky, 03680 Kyiv, Ukraine
2Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska str., 01601 Kyiv, Ukraine Corresponding author: phone +38(044)-526-45-87; e-mail: n_berezovska@univ.kiev.ua

Abstract. Under irradiation of the surface of metals with femtosecond laser pulses, periodic surface micro- and nanostructures have been obtained. The dependence of orientation inherent to formed structures on direction of the electric field related with the incident electromagnetic wave and type of polarization of this wave has been studied. Typically these laser-induced structures are perpendicular to the electric field of incident light and have period shorter than the laser wavelength. The structures oriented in parallel to the polarization vector with a longer period have been also revealed. The dependence of surface structure formation on the initial surface defects in metal has been found.

Keywords: femtosecond laser pulses, quasi-periodic surface structures, surface plasmons, circular polarization.

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