Subnanosecond-laser-induced periodic surface structures on prescratched silicon substrate

Motoharu Hongo, Shigeki Matsuo

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Laser-induced periodic surface structures (LIPSS) were fabricated on a prescratched silicon surface by irradiation with subnanosecond laser pulses. Low-spatial-frequency LIPSS (LSFL) were observed in the central and peripheral regions; both had a period Λ close to the laser wavelength λ, and the wavevector orientation was parallel to the electric field of the laser beam. The LSFL in the peripheral region seemed to be growing, that is, expanding in length with increasing number of pulses, into the outer regions. In addition, high-spatial-frequency LIPSS, λ ≲ λ =2, were found along the scratches, and their wavevector orientation was parallel to the scratches.

本文言語English
論文番号062703
ジャーナルApplied Physics Express
9
6
DOI
出版ステータスPublished - 2016 6

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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