M Huang et al 2007 Nanotechnology 18 505301 doi:10.1088/0957-4484/18/50/505301
M Huang1, F L Zhao1, T Q Jia2, Y Cheng3, N S Xu1 and Z Z Xu3
Show affiliationsA uniform submicron periodic square structure was fabricated on the surface of ZnO by a technique of two linearly polarized femtosecond laser beams with orthogonal polarizations ablating material alternately. The formed two-dimensional ordering submicron structure consists of close-packed submicron squares with a spacial periodicity of 290 nm, which arises from the intercrossing of two orthogonal submicron ripple structures induced by the two beams respectively. The result demonstrates a noninterference effect of two-beam ablation based on the alternate technique, which should come from the polarization-dependent enhancement of the subwavelength ripple structure and the large interval of two alternate pulses. This two-beam alternate ablation technique is expected to open up prospects for the submicron fabrication of wide-bandgap materials.
Corrections were made to this article on the 22 November 2007. 'submicro' was changed to 'submicron' throughout the article. The corrected electronic version is identical to the print version.
Issue 50 (19 December 2007)
Received 6 September 2007, in final form 16 October 2007
Published 20 November 2007
M Huang et al 2007 Nanotechnology 18 505301
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