Journal
LASER PHYSICS LETTERS
Volume 11, Issue 10, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1612-2011/11/10/106101
Keywords
femtosecond laser pulses; single-wall carbon nanotubes; thermal strength; ablation mechanisms
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Single- and multi-shot femtosecond laser surface ablation of a single-wall carbon nanotube-based substrate at 515- and 1030 nm wavelengths was studied by scanning electron microscopy and micro-Raman spectroscopy. The laser ablation proceeds in two ways: as the low-fluence mesoscopic shallow disintegration of the surface nanotube packing, preserving the individual integrity and the semiconducting character of the nanotubes or as the high-fluence deep material removal apparently triggered by the strong intrinsic or impurity-mediated ablation of the individual carbon nanotubes on the substrate surface.
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