Formation of laser-induced periodic surface structures (LIPSS) on tool steel by multiple picosecond laser pulses of different polarizations

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

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.

• Language: English
• Keywords: LIPSS, self-organization model, laser microprocessing
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2016
• Number of pages: Str. 698-706
• Numbering: Vol. 387
• PID: 20.500.12556/RUL-105545
• UDC: 544.537(045)
• ISSN on article: 0169-4332
• DOI: 10.1016/j.apsusc.2016.06.174
• COBISS.SI-ID: 14711835
• Publication date in RUL: 05.12.2018

Record is a part of a journal

• Title: Applied surface science
• Shortened title: Appl. surf. sci.
• Publisher: Elsevier
• ISSN: 0169-4332
• COBISS.SI-ID: 3283215

Secondary language

• Language: Slovenian
• Keywords: mikrostrukturiranje površin, lasersko mikrostrukturiranje

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0392
• Name: Optodinamika