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Nanotechnology. 2009 Mar 25;20(12):125303. doi: 10.1088/0957-4484/20/12/125303. Epub 2009 Mar 3.

Ordered nanostructures written directly by laser interference.

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  • 1Optoelectronics Research Centre, Tampere University of Technology, Tampere, Finland.


We present a simplified method to employ laser interference lithography for the fabrication of ordered nanostructures. Neither resist, nor an elaborate fabrication process was needed. Four-beam interference patterns generated in this work included periodic arrays of holes in GaAs, covered with SiO(2) bubbles, and they were directly written into the sample. The diameters of the smallest holes were less than 30 nm. We propose a model to interpret the results.

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