Through nanohole formation in thin metallic film by single nanosecond laser pulses using optical dielectric apertureless probe.

@article{Kulchin2013ThroughNF,
  title={Through nanohole formation in thin metallic film by single nanosecond laser pulses using optical dielectric apertureless probe.},
  author={Yu. N. Kulchin and Oleg B. Vitrik and Aleksandr A Kuchmizhak and A. V. Nepomnyashchii and Andrey G. Savchuk and Andrey A. Ionin and Sergey I. Kudryashov and Sergey V Makarov},
  journal={Optics letters},
  year={2013},
  volume={38 9},
  pages={
          1452-4
        }
}
Separate nanoholes with the minimum size down to 35 nm (~λ/15) and nanohole arrays with the hole size about 100 nm (~λ/5) were fabricated in a 50 nm optically "thick" Au/Pd film, using single 532 nm pump nanosecond laser pulses focused to diffraction-limited spots by a specially designed apertureless dielectric fiber probe. Nanohole fabrication in the metallic film was found to result from lateral heat diffusion and center-symmetrical lateral expulsion of the melt by its vapor recoil pressure… CONTINUE READING
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