Hierarchical laser-induced periodic surface structures induced by femtosecond laser on the surface of a ZnO film

Shaojun Wang, Lan Jiang, Weina Han, Jie Hu, Xiaowei Li, Qingsong Wang, Yongfeng Lu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We realize hierarchical laser-induced periodic surface structures (LIPSSs) on the surface of a ZnO thin film in a single step by the irradiation of femtosecond laser pulses. The structures are characterized by the high-spatial-frequency LIPSSs (HSFLs) formed on the abnormal bumped low-spatial-frequency LIPSSs (LSFLs). Localized electric-field enhancement based on the initially formed LSFLs is proposed as a potential mechanism for the formation of HSFLs. The simulation results through the finite-difference time-domain method show good agreement with experiments. Furthermore, the crucial role of the LSFLs in the formation of HSFLs is validated by an elaborate experimental design with preprocessed HSFLs.

Original languageEnglish (US)
Article number052703
JournalApplied Physics Express
Volume11
Issue number5
DOIs
StatePublished - May 2018

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Ultrashort pulses
Surface structure
Lasers
lasers
Finite difference time domain method
Design of experiments
Electric fields
Irradiation
Thin films
finite difference time domain method
Experiments
irradiation
electric fields
augmentation
thin films
pulses
simulation

ASJC Scopus subject areas

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

Cite this

Hierarchical laser-induced periodic surface structures induced by femtosecond laser on the surface of a ZnO film. / Wang, Shaojun; Jiang, Lan; Han, Weina; Hu, Jie; Li, Xiaowei; Wang, Qingsong; Lu, Yongfeng.

In: Applied Physics Express, Vol. 11, No. 5, 052703, 05.2018.

Research output: Contribution to journalArticle

Wang, Shaojun ; Jiang, Lan ; Han, Weina ; Hu, Jie ; Li, Xiaowei ; Wang, Qingsong ; Lu, Yongfeng. / Hierarchical laser-induced periodic surface structures induced by femtosecond laser on the surface of a ZnO film. In: Applied Physics Express. 2018 ; Vol. 11, No. 5.
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