Laser cleaning of marble samples using picosecond laser at three different wavelengths

Wenzhe Hu; Chenyu Li; Guanyin Song; Xueyan Zhang; Shuzhen Nie; Liang Qu; Xiaolong Liu

doi:10.1117/12.3007959

24 November 2023 Laser cleaning of marble samples using picosecond laser at three different wavelengths

Wenzhe Hu, Chenyu Li, Guanyin Song, Xueyan Zhang, Shuzhen Nie, Liang Qu, Xiaolong Liu

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 129354A (2023) https://doi.org/10.1117/12.3007959
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

In order to remove the black pollution crusts on the marble artifacts, picosecond (ps) laser cleaning of marble samples has been performed experimentally at three different wavelengths (1064 nm, 532 nm, and 355 nm). Ablation threshold and cleaning efficiency of the three wavelength lasers have been characterized by measuring monolayer ablation depth with 3D microscope using the blow-off model. It has been found that laser ablation efficiency at 1064 nm wavelength is the highest among the above three wavelengths, while that of 355 nm wavelength is the lowest. The ablation threshold of 1064 nm, 532 nm, and 355 nm laser pulses are 0.198±0.033 J/cm², 0.573±0.114 J/cm² and 0.739±0.249 J/cm² respectively. The advantages and effectiveness of ps laser cleaning have been demonstrated in removing contaminants on the marble samples at three different wavelengths, especially at 1064 nm.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wenzhe Hu, Chenyu Li, Guanyin Song, Xueyan Zhang, Shuzhen Nie, Liang Qu, and Xiaolong Liu "Laser cleaning of marble samples using picosecond laser at three different wavelengths", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 129354A (24 November 2023); https://doi.org/10.1117/12.3007959

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