Research on the cleaning of bronze coins using picosecond laser

Cong Wang; Xiaolong Liu; Bianbian Sun; Chenyu Li; Liang Qu

doi:10.1117/12.2604822

24 November 2021 Research on the cleaning of bronze coins using picosecond laser

Cong Wang, Xiaolong Liu, Bianbian Sun, Chenyu Li, Liang Qu

Proceedings Volume 12060, AOPC 2021: Advanced Laser Technology and Applications; 120600E (2021) https://doi.org/10.1117/12.2604822
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

Bronze cultural relics are an important part of Chinese traditional historical and cultural heritage. With the rapid development of ultrafast lasers in recent years, picosecond lasers have gradually been used in laser precision processing due to their controllability, reliability and low cost. With the increase of laser power, the laser ablation effect will occur[1].The contaminant on the surface of bronze cultural relics are thinner compared to that on other type of cultural heritage and need more accurate cleaning method needs to be used for removing contaminants without damaging the substrate of bronze relics. In 2013, Zhang Xiaotong et al. used wet laser cleaning technology to perform laser cleaning on the gilt bronze statues provided by Hebei Cultural Protection Center. They changed the power density, conducted preliminary trials of bronze cleaning [2]. In 2018, Shen Yijia et al. used agar gel and laser combined method to protect the bronze cultural relics from laser damage[3].

Citation Download Citation

Cong Wang, Xiaolong Liu, Bianbian Sun, Chenyu Li, and Liang Qu "Research on the cleaning of bronze coins using picosecond laser", Proc. SPIE 12060, AOPC 2021: Advanced Laser Technology and Applications, 120600E (24 November 2021); https://doi.org/10.1117/12.2604822

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