Peter Gregorčič (Author), Marko Sedlaček (Author), Bojan Podgornik (Author), Jürgen Reif (Author)

Abstract

Laser-induced periodic surface structures (LIPSS) are produced on cold work tool steel by irradiation with a low number of picosecond laser pulses. As expected, the ripples, with a period of about 90% of the laser wavelength, are oriented perpendicular to the laser polarization. Subsequent irradiation with the polarization rotated by 45° or 90° results in a corresponding rotation of the ripples. This is visible already with the first pulse and becomes almost complete - erasing the previous orientation - after as few as three pulses. The phenomenon is not only observed for single-spot irradiation but also for writing long coherent traces. The experimental results strongly defy the role of surface plasmon-polaritons as the predominant key to LIPSS formation.

Keywords

LIPSS;self-organization model;laser microprocessing;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 544.537(045)
COBISS: 14711835 Link will open in a new window
ISSN: 0169-4332
Views: 1581
Downloads: 1155
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: mikrostrukturiranje površin;lasersko mikrostrukturiranje;
Type (COBISS): Article
Pages: str. 698-706
Issue: ǂVol. ǂ387
Chronology: Nov. 2016
DOI: 10.1016/j.apsusc.2016.06.174
ID: 10991288