Femtosecond laser-induced periodic surface structures on silicon upon polarization controlled two-color double-pulse irradiation
- Two-color double-fs-pulse experiments were performed on silicon wafers to study the temporally distributed energy deposition in the formation of laser-induced periodic surface structures (LIPSS). A Mach-Zehnder interferometer generated parallel or cross-polarized double-pulse sequences at 400 and 800 nm wavelength, with inter-pulse delays up to a few picoseconds between the sub-ablation 50-fs-pulses. Multiple two-color double-pulse sequences were collinearly focused by a spherical mirror to the sample. The resulting LIPSS characteristics (periods, areas) were analyzed by scanning electron microscopy. A wavelength-dependent plasmonic mechanism is proposed to explain the delay-dependence of the LIPSS. These two-color experiments extend previous single-color studies and prove the importance of the ultrafast energy deposition for LIPSS formation.
Autor*innen: | S. Höhm, M. Herzlieb, A. Rosenfeld, Jörg KrügerORCiD, Jörn BonseORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Optics express |
Jahr der Erstveröffentlichung: | 2015 |
Verlag: | Optical Society of America |
Verlagsort: | Washington, DC |
Jahrgang/Band: | 23 |
Ausgabe/Heft: | 1 |
Erste Seite: | 61 |
Letzte Seite: | 71 |
DOI: | 10.1364/OE.23.000061 |
ISSN: | 1094-4087 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 15.01.2015 |