Journal
OPTICS EXPRESS
Volume 18, Issue 3, Pages 2144-2151Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.002144
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- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Japan Society for the Promotion of Science (JSPS) [20360025]
- Grants-in-Aid for Scientific Research [20360025] Funding Source: KAKEN
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Laser ablation of Ta plates using nanosecond optical vortex pulses was carried out, for the first time. It was suggested that owing to orbital angular momentum of optical vortex, clearer and smoother processed surfaces were obtained with less ablation threshold fluence, in comparison with the ablation by a nonvortex annular beam modified from a spatially Gaussian beam. (C) 2010 Optical Society of America
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