Acta Optica Sinica, Volume. 36, Issue 5, 532001(2016)

Investigation of Femtosecond Laser-Induced Periodic Surface Structure on Tungsten

Li Chen1,2,3、*, Cheng Guanghua1,3, and Stoian Razvan3
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3Laboratoire Hubert Curien, UMR 5516 CNRS, Université de Lyon, Université Jean Monnet, Saint Etienne France 42000
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    Femtosecond laser-induced periodic surface structure (LIPSS) has the potential applications in tunable thermal source, tribology, super-hydrophilicity, super-hydrophobicity, marking and so on. LIPSS formation and mechanism on tungsten with a 800 nm femtosecond laser are investigated. The electromagnetic energy distribution on random rough surface after the first laser pulse and the energy distribution of electromagnetic field induced by low-spatial-frequency LIPSS after 20 pulses are simulated by Sipe interference model and finite-difference time-domain (FDTD) method. The formation mechanism of low-spatial-frequency and high-spatial-frequency LIPSS (HSFL) is disclosed. The evolution of surface morphology and the phenomena of spatial period decreasing with the increase of laser pulse number are also investigated.

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    Li Chen, Cheng Guanghua, Stoian Razvan. Investigation of Femtosecond Laser-Induced Periodic Surface Structure on Tungsten[J]. Acta Optica Sinica, 2016, 36(5): 532001

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    Paper Information

    Category: Ultrafast Optics

    Received: Dec. 23, 2015

    Accepted: --

    Published Online: May. 3, 2016

    The Author Email: Chen Li (782969713@qq.com)

    DOI:10.3788/aos201636.0532001

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