科研之友
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摘要
We describe the fabrication of a large area of chromium nanogratings formed by laser focusing techniques. The focusing occurs in an elliptical laser standing-wave field, resulting in a line array covering an area of approximately 1.5 x 1.5 mm(2) with a spacing of 212.78 nm. The experimental arrangement for laser focusing is described. Improvements in the technique and potential applications are also mentioned.
