Mechanism of femtosecond-laser-induced periodic nanostructure formation on crystalline silicon surface immersed in water.

@article{Miyaji2012MechanismOF,
  title={Mechanism of femtosecond-laser-induced periodic nanostructure formation on crystalline silicon surface immersed in water.},
  author={Godai Miyaji and Kunitoshi Toyota Miyazaki and Kaifeng Zhang and Takakazu Yoshifuji and Junya Fujita},
  journal={Optics express},
  year={2012},
  volume={20 14},
  pages={
          14848-56
        }
}
Focused on silicon surface in water, superimposed multiple shots of linearly polarized 800-nm, 100-fs, 10-Hz laser pulses at lower fluence than the single-pulse ablation threshold are shown to produce two kinds of periodic nanostructures with almost constant periods of 150 nm and 400 nm. Surface plasmon polaritons excited in the surface layer illustrates well the formation of nanostructures and its dynamic properties observed. Pump and probe measurements of the ultrafast change in surface… CONTINUE READING
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