20.500.12556/RUL-105545 Formation of laser-induced periodic surface structures (LIPSS) on tool steel by multiple picosecond laser pulses of different polarizations 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. LIPSS self-organization model laser microprocessing mikrostrukturiranje površin lasersko mikrostrukturiranje true false true Angleški jezik Slovenski jezik Članek v reviji 2018-12-05 08:53:51 2018-12-05 08:53:52 2025-02-24 10:01:30 0000-00-00 00:00:00 2016 0 0 Str. 698-706 Vol. 387 Nov. 2016 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 544.537(045) 0169-4332 10.1016/j.apsusc.2016.06.174 14711835 3283215 RAZ_Gregorcic_Peter_i2016.pdf RAZ_Gregorcic_Peter_i2016.pdf 1 1DECFDDDAEFA6F61DFBB6902178A2F39 f5c12102fd874204e11eba057e54fcbb98bf33cb42d806b6337d2d3113baf505 326611b3-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=116214 http://www.sciencedirect.com/science/article/pii/S0169433216314039 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=116213 Fakulteta za strojništvo 0 0 0