Non-diffraction-length Bessel-beam femtosecond laser drilling of high-aspect-ratio microholes in PMMA
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DOI: 10.1016/j.ijleo.2021.166295
Abstract: Abstract Bessel beam femtosecond lasers being non-diffractive are well-suited for drilling high aspect ratio microholes with minor thermal impact. Hereby, the Bessel beams with different non-diffraction lengths using axicon lenses were generated with different taper… read more here.
Keywords: femtosecond; ratio; ratio microholes; laser ... See more keywords