中国物理B ›› 2008, Vol. 17 ›› Issue (4): 1223-1226.doi: 10.1088/1674-1056/17/4/012

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Femtosecond pulse laser-induced self-organized nanostructures on the surface of ZnO crystal

郭广磊1, 杨俊毅1, 马宁华1, 叶果1, 钟敏建2, 马洪良2, 郭晓东3, 李儒新3   

  1. (1)Department of Physics, Shanghai University, Shanghai 200444, China; (2)Department of Physics, Shanghai University, Shanghai 200444, China ^b)Instrumental Analysis and Research Center, Shanghai University, Shanghai 200444, China; (3)State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2007-06-14 修回日期:2007-06-20 出版日期:2008-04-20 发布日期:2008-04-01
  • 基金资助:
    Project supported by the Shanghai Leading Academic Discipline Project (Grant No T0104), the Shanghai Nano-technology Promotion Center and Science \& Technology of Shanghai Municipality (Grant No 0652nm005) and Innovation Fund of Shanghai University, China

Femtosecond pulse laser-induced self-organized nanostructures on the surface of ZnO crystal

Zhong Min-Jian(钟敏建)a)b), Guo Guang-Lei(郭广磊)a), Yang Jun-Yi(杨俊毅)a), Ma Ning-Hua(马宁华)a), Ye Guo(叶果)a), Guo Xiao-Dong(郭晓东)c), Li Ru-Xin(李儒新)c), and Ma Hong-Liang(马洪良)a)b)†   

  1. a Department of Physics, Shanghai University, Shanghai 200444, China; b Instrumental Analysis and Research Center, Shanghai University, Shanghai 200444, China; c State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2007-06-14 Revised:2007-06-20 Online:2008-04-20 Published:2008-04-01
  • Supported by:
    Project supported by the Shanghai Leading Academic Discipline Project (Grant No T0104), the Shanghai Nano-technology Promotion Center and Science \& Technology of Shanghai Municipality (Grant No 0652nm005) and Innovation Fund of Shanghai University, China

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摘要： This paper reports self-organized nanostructures observed on the surface of ZnO crystal after irradiation by a focused beam of a femtosecond Ti:sapphire laser with a repetition rate of 250\,kHz. For a linearly polarized femtosecond laser, the periodic nanograting structure on the ablation crater surface was promoted. The period of self-organization structures is about 180\,nm. The grating orientation is adjusted by the laser polarization direction. A long range Bragg-like grating is formed by moving the sample at a speed of 10\,\mu m/s. For a circularly polarized laser beam, uniform spherical nanoparticles were formed as a result of Coulomb explosion during the interaction of near-infrared laser with ZnO crystal.

关键词: infrared femtosecond laser, ZnO crystal, nanograting, nanostructure

Abstract: This paper reports self-organized nanostructures observed on the surface of ZnO crystal after irradiation by a focused beam of a femtosecond Ti:sapphire laser with a repetition rate of 250 kHz. For a linearly polarized femtosecond laser, the periodic nanograting structure on the ablation crater surface was promoted. The period of self-organization structures is about 180 nm. The grating orientation is adjusted by the laser polarization direction. A long range Bragg-like grating is formed by moving the sample at a speed of 10 $\mu$m/s. For a circularly polarized laser beam, uniform spherical nanoparticles were formed as a result of Coulomb explosion during the interaction of near-infrared laser with ZnO crystal.

Key words: infrared femtosecond laser, ZnO crystal, nanograting, nanostructure

中图分类号:  (Gratings)

  • 42.79.Dj
61.46.Hk (Nanocrystals) 61.80.Ba (Ultraviolet, visible, and infrared radiation effects (including laser radiation)) 78.47.-p (Spectroscopy of solid state dynamics) 78.67.Bf (Nanocrystals, nanoparticles, and nanoclusters)