Display Settings:

Format

Send to:

Choose Destination
Opt Express. 2008 Sep 29;16(20):16265-71.

Origin of periodicity in nanostructuring on thin film surfaces ablated with femtosecond laser pulses.

Author information

  • 1Advanced Laser Science Research Section, Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan. g-miyaji@iae.kyoto-u.ac.jp

Abstract

We report physical processes responsible for the periodic nanostructure formation in femtosecond-laser ablation of thin film surfaces. It has been found that an initial random distribution of nanoscale ablation traces is periodically structured with an increase in superimposed laser pulses or fluence on diamond-like carbon film used as the target. The results show that the formation of periodicity can be attributed to the excitation of surface plasmon polaritons to induce the periodic enhancement of local fields in the surface layer. The estimated field period is in good agreement with the observed size of nanostructures.

PMID:
18825266
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk