Controllable formation of laser-induced periodic surface structures on ZnO film by temporally shaped femtosecond laser scanning

Shaojun Wang, Lan Jiang, Weina Han, Wei Liu, Jie Hu, Suocheng Wang, Yongfeng Lu

Research output: Contribution to journalArticle

Abstract

We achieved the controllable formation of laser-induced periodic surface structures (LIPSSs) on ZnO films deposited on fused silica induced by modulated temporally shaped femtosecond (fs) laser pulses (800 nm, 50 fs, 1 kHz) through the laser scanning technique. Two-dimensional (2D) high spatial frequency LIPSSs (HSFLs) with a period from 100 to 200 nm could be flexibly modulated based on the preprocessed nanostructures with appropriate fs laser irradiation conditions (fluence, scanning speed, and pulse delay). The finite-difference time-domain (FDTD) method combined with the Drude model was employed to calculate the redistributions of electric fields, which suggested the origin of HSFLformation.

Original languageEnglish (US)
Pages (from-to)2411-2414
Number of pages4
JournalOptics Letters
Volume45
Issue number8
DOIs
StatePublished - Apr 15 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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