Laser fluence dependence of periodic grating structures formed on metal surfaces under femtosecond laser pulse irradiation

By K. Okamuro, M. Hashida, Y. Miyasaka, Y. Ikuta, S. Tokita, S. Sakabe. 2010

194 citations recorded by the source corpus.

Periodic structures self-formed on the surface of several metals under femtosecond laser-pulse irradiation are investigated by electron microscopy. For the self-formation of periodic gratings on metal surfaces, the interspaces of the periodic structures depend on laser fluence. This dependence is the same for all metals, although the range of laser fluence in which the structures are formed differs between metals. The laser fluence dependence can be explained by the generation of a plasma wave through the parametric decay of laser light [S. Sakabe, M. Hashida, S. Tokita, S. Namba, and K. Okamuro, Phys. Rev. B 79, 033409 (2009)]. This indicates that the formation of periodic structures depends not only on metal properties but also on the electron density of plasma produced on a surface by femtosecond laser pulses.

Subfields: Computational Mechanics, Mechanics of Materials, Ophthalmology

View Paper: https://www.semanticscholar.org/paper/5506d71e4efa5a6b8e43ae72fcc591a6e7631c74

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In Computational Mechanics

In Mechanics of Materials

In Ophthalmology

Citations in the corpus

Laser-Induced Periodic Surface Structures— A Scientific Evergreen (2017, background): “For most materials, a moderate increase of ΛLSFL with fluence is observed [19], [38], [43], [86], [87].”
Ultrafast laser processing of materials: a review (2015, unknown): “Femtosecond lasers have been used to produce a wide variety of surface structures including conical peaks [16,43], periodic gratings [44,45], and ripples [46,47].”
Fabrication of Micro/Nano Structures on Metals by Femtosecond Laser Micromachining (2014, background): “Furthermore, with the same 800 nm laser wavelength LSFL with periodicity ranging from 500 to 700 nm were produced [29,84,104,111].”