Temporal femtosecond pulse shaping dependence of laser-induced periodic surface structures in fused silica

Xuesong Shi, Lan Jiang, Xin Li, Kaihu Zhang, Dong Yu, Yanwu Yu, Yongfeng Lu

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

The dependence of periodic structures and ablated areas on temporal pulse shaping is studied upon irradiation of fused silica by femtosecond laser triple-pulse trains. Three types of periodic structures can be obtained by using pulse trains with designed pulse delays, in which the three-dimensional nanopillar arrays with ∼100-150 nm diameters and ∼200 nm heights are first fabricated in one step. These nanopillars arise from the break of the ridges of ripples in the upper portion, which is caused by the split of orthogonal ripples in the bottom part. The localized transient electron dynamics and corresponding material properties are considered for the morphological observations.

Original languageEnglish (US)
Article number033104
JournalJournal of Applied Physics
Volume116
Issue number3
DOIs
StatePublished - Jul 21 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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