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Holographic fabrication of micron structures using interfered femtoseond laser beams split by diffractive optics

A line of periodic dot structure was fabricated on and inside materials by laser-induced modification with interfered femtosecond laser beams split by a diffractive optics. In addition, dot matrix and comb structures were fabricated with transportation of a sample at arbitrary speeds. These structures worked as transmission and reflection gratings. In addition, nanowires were fabricated by peeling the comb structure. Dot matrix was also formed by a single shot of laser ablation with four interfering beams.