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Optical fibers are used to achieve a flexible interference ablation scheme, where the bundled end of fibers functions as a beam splitter and the fibers are used to deliver 5-ns ultraviolet laser pulses at 355 nm. The divergent beams from the free ends of fibers are overlapped onto the film of colloidal gold nanoparticles. A single-pulse single-shot exposure process leads to removal of the gold nano-particles within the bright interference fringes. Gold nanogratings are produced on glass substrates coated with indium tin oxide after an annealing process at 400 degrees C. Fano coupling between plasmon and waveguide resonance modes was observed. (C) 2014 AIP Publishing LLC.
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