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Formation of laser-induced periodic surface structures (LIPSS) on tool steel by multiple picosecond laser pulses of different polarizations
ID
Gregorčič, Peter
(
Author
),
ID
Sedlaček, Marko
(
Author
),
ID
Podgornik, Bojan
(
Author
),
ID
Reif, Jürgen
(
Author
)
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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.
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
Views:
1358
Downloads:
1011
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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
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