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    Sapphire surface patterning using femtosecond laser micromachining

    This study presents an alternative method for micron-resolution patterning of a sapphire surface utilizing the characteristic of an ultra-short pulse (10−15 s) from ytterbium (Yb) femtosecond laser (FS-laser) irr...

    Cho-Wei Chang, Chien-Yu Chen, Tien-Li Chang, Chia-Jen Ting in Applied Physics A (2012)