Abstract
Long lines of periodic hole structures were produced on a gold film, a glass slide and polystyrene by laser ablation using interfering femtosecond lasers split by a transmission grating. An optical system comprising a cylindrical lens added to an imaging system with a transmission grating was used to obtain the interference of two beams along a long length, and high laser fluence was used to achieve laser ablation. The separation of each hole was 6.25 μm, and the total length of the structure produced reached 6 mm, which is longest periodic structure produced by a shot of femtosecond laser.
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42.62.-b; 07.60.Ly; 42.40.Eq
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Nakata, Y., Okada, T. & Maeda, M. Lines of periodic hole structures produced by laser ablation using interfering femtosecond lasers split by a transmission grating. Appl Phys A 77, 399–401 (2003). https://doi.org/10.1007/s00339-003-2078-8
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DOI: https://doi.org/10.1007/s00339-003-2078-8