Continuous modulations of femtosecond laserinduced periodic surface structures and scanned line-widths on silicon by polarization changes

Weina Han, Lan Jiang, Xiaowei Li, Pengjun Liu, Le Xu, Yongfeng Lu

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Large-area, uniform laser-induced periodic surface structures (LIPSS) are of wide potential industry applications. The continuity and processing precision of LIPSS are mainly determined by the scanning intervals of adjacent scanning lines. Therefore, continuous modulations of LIPSS and scanned line-widths within one laser scanning pass are of great significance. This study proposes that by varying the laser (800 nm, 50 fs, 1 kHz) polarization direction, LIPSS and the scanned line-widths on a silicon (111) surface can be continuously modulated with high precision. It shows that the scanned line-width reaches the maximum when the polarization direction is perpendicular to the scanning direction. As an application example, the experiments show large-area, uniform LIPSS can be fabricated by controlling the scanning intervals based on the one-pass scanned linewidths. The simulation shows that the initially formed LIPSS structures induce directional surface plasmon polaritons (SPP) scattering along the laser polarization direction, which strengthens the subsequently anisotropic LIPSS fabrication. The simulation results are in good agreement with the experiments, which both support the conclusions of continuous modulations of the LIPSS and scanned line-widths.

Original languageEnglish (US)
Pages (from-to)15505-15513
Number of pages9
JournalOptics Express
Volume21
Issue number13
DOIs
StatePublished - Jul 1 2013

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modulation
silicon
polarization
lasers
scanning
intervals
continuity
polaritons
simulation
industries
fabrication
scattering

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Continuous modulations of femtosecond laserinduced periodic surface structures and scanned line-widths on silicon by polarization changes. / Han, Weina; Jiang, Lan; Li, Xiaowei; Liu, Pengjun; Xu, Le; Lu, Yongfeng.

In: Optics Express, Vol. 21, No. 13, 01.07.2013, p. 15505-15513.

Research output: Contribution to journalArticle

Han, Weina ; Jiang, Lan ; Li, Xiaowei ; Liu, Pengjun ; Xu, Le ; Lu, Yongfeng. / Continuous modulations of femtosecond laserinduced periodic surface structures and scanned line-widths on silicon by polarization changes. In: Optics Express. 2013 ; Vol. 21, No. 13. pp. 15505-15513.
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