Controllable annulus micro-/nanostructures on copper fabricated by femtosecond laser with spatial doughnut distribution
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DOI: 10.3788/col202018.013101
Abstract: In this study, we propose an effective method for the fabrication of annulus micro-/nanostructures by a femtosecond laser doughnut beam. Compared with the traditional Bessel annulus beam shaping system, this method greatly compresses the light… read more here.
Keywords: doughnut; femtosecond laser; nanostructures copper; micro nanostructures ... See more keywords