Applied Physics A

, Volume 94, Issue 2, pp 423–426

Coherent linking of periodic nano-ripples on a ZnO crystal surface induced by femtosecond laser pulses

  • X. D. Guo
  • R. X. Li
  • Y. Hang
  • Z. Z. Xu
  • B. K. Yu
  • Y. Dai
  • B. Lu
  • X. W. Sun
Article

DOI: 10.1007/s00339-008-4838-y

Cite this article as:
Guo, X.D., Li, R.X., Hang, Y. et al. Appl. Phys. A (2009) 94: 423. doi:10.1007/s00339-008-4838-y

Abstract

We demonstrate the coherent linking of periodic nano-ripples formed on the surface of ZnO crystals induced by femtosecond laser pulses. By adjusting the distance between two laser scanning zones, the periodic nano-ripples induced by two separated laser writing processes can be coherently linked and the ZnO nanograting with much longer grooves is therefore produced. The length limitation of this kind of nanograting previously set by the laser focus size is thus overcome. The micro-Raman mapping technique is used to evaluate the quality of coherent linking, and the underlying physics is discussed. The demonstrated scheme is promising for producing large-size self-organized nanogratings induced by femtosecond laser pulses.

PACS

33.20.Fb81.16.Rf78.67.-n82.53.Mj81.16.-c

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • X. D. Guo
    • 1
  • R. X. Li
    • 1
  • Y. Hang
    • 1
  • Z. Z. Xu
    • 1
  • B. K. Yu
    • 2
  • Y. Dai
    • 2
  • B. Lu
    • 3
  • X. W. Sun
    • 4
  1. 1.State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina
  2. 2.Department of PhysicsShanghai UniversityShanghaiChina
  3. 3.Instrumental Analysis & Research CenterShanghai UniversityShanghaiChina
  4. 4.School of Electrical and Electronic EngineeringNanyang Technological UniversitySingaporeSingapore