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16 December 2022 Laser cleaning of manmade stone samples using picosecond and nanosecond laser pulses
X. L. Liu, C. Y. Li, C. Wang, S. Z. Nie, H. W. Liu, L. Qu, Z. W. Fan
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Proceedings Volume 12501, Seventeenth National Conference on Laser Technology and Optoelectronics; 1250110 (2022) https://doi.org/10.1117/12.2656467
Event: Seventeenth National Conference on Laser Technology and Optoelectronics, 2022, Shanghai, China
Abstract
Laser cleaning of manmade contaminants from stone samples have been performed experimentally using picosecond (ps) and nanosecond (ns) laser pulses. Regarding the surface roughness after laser cleaning, optimal cleaning parameters using ps laser have been obtained. Discoloration effect induced by ns laser cleaning of stone sample is improved with the usage of ps laser. The comparison on the roughness and elemental analysis of the cleaned area in the experiment also demonstrates the advantages and effectiveness of ps laser cleaning of stone samples.
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X. L. Liu, C. Y. Li, C. Wang, S. Z. Nie, H. W. Liu, L. Qu, and Z. W. Fan "Laser cleaning of manmade stone samples using picosecond and nanosecond laser pulses", Proc. SPIE 12501, Seventeenth National Conference on Laser Technology and Optoelectronics, 1250110 (16 December 2022); https://doi.org/10.1117/12.2656467
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KEYWORDS
Picosecond phenomena
Laser energy
Pulsed laser operation
Cultural heritage
Laser applications
Laser development
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