Chinese Optics, Volume. 17, Issue 5, 1050(2024)
Application of dual-wavelength nanosecond laser cleaning technology on stone artifacts
Fig. 1. Schematic diagram of laser dry cleaning. (a) Schematic diagram of strong substrate absorption; (b) schematic diagram of strong particle absorption
Fig. 3. (a) Physical image and (b) optical path diagram of three-wavelength nanosecond laser cleaning system
Fig. 4. Relationship between energy density and damage probability for cleaning different parts of pollutants by
Fig. 5. Relationship between energy density and damage probability for cleaning different parts of pollutants by 355-nm laser
Fig. 6. Microscopic photos of cleaning effects of
Fig. 7. Comparison of stone cultural relics’ surface cleaned by laser with different energy densities
Fig. 8. Raman spectra of marble without crust, marble with crust, laser cleaning separately with
Table 1. Single pulse energy, energy density, and damage probability for cleaning different parts of pollutants by
1064 -nm laserView tableView in ArticleTable 1. Single pulse energy, energy density, and damage probability for cleaning different parts of pollutants by
1064 -nm laser单脉冲能量(mJ) 能量密度(J·cm−2) 损伤概率(%) 0.89 52.06 100 0.73 42.7 100 0.46 26.91 90 0.28 16.38 90 0.09 5.26 70 0.07 4.09 60 0.06 3.51 60 0.05 2.92 40 0.04 2.34 0
Table 2. Single pulse energy, energy density, and damage probability for cleaning different parts of pollutants by 355-nm laser
View tableView in ArticleTable 2. Single pulse energy, energy density, and damage probability for cleaning different parts of pollutants by 355-nm laser
单脉冲能量/mJ 能量密度(J·cm−2) 损伤概率(%) 0.154 81.07 100 0.105 55.27 100 0.07 36.85 70 0.056 29.48 40 0.042 22.11 20 0.036 18.95 20 0.021 11.05 0
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Chen-yu LI, Wen-zhe HU, Xue-yan ZHANG, Han-wen LIU, Xiao-long LIU, Liang QU, Meng ZHU, Hong-ying DUAN, Pouli Paraskevi. Application of dual-wavelength nanosecond laser cleaning technology on stone artifacts[J]. Chinese Optics, 2024, 17(5): 1050
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Received: Jan. 2, 2024
Accepted: Mar. 27, 2024
Published Online: Dec. 31, 2024
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