Femtosecond pulse laser cleaning of spray paint from heritage stone surfaces

被引：6
|
作者：
Brand, J. [1 ,2 ]
Wain, A. [1 ]
Rode, A., V [2 ]
Madden, S. [2 ]
King, P. L. [3 ]
Rapp, L. [2 ]
机构：
[1] Univ Canberra, Fac Art & Design, Ctr Creat & Cultural Res, Canberra, ACT 2617, Australia
[2] Australian Natl Univ, Res Sch Phys, Dept Quantum Sci & Technol, Canberra, ACT 2601, Australia
[3] Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia
来源：
OPTICS EXPRESS | 2022年 / 30卷 / 17期
基金：
澳大利亚研究理事会;
关键词：
ARTISTIC MATERIALS; GRAFFITI REMOVAL; RAMAN; PIGMENTS; IDENTIFICATION;
D O I：
10.1364/OE.468750
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We explore the use of femtosecond laser pulses to clean a variety of colors of spray paint from the Moruya granite, a stone with high heritage value that is widely used for monuments and sculptures in Sydney and New South Wales (Australia). The efficiency of the cleaning treatment and the effects on the stone substrate are evaluated using optical microscopy, optical profilometry, Raman spectroscopy, energy-dispersive X-ray spectroscopy, and colorimetry. We demonstrate that femtosecond laser cleans granite without damaging it and without discoloration when the laser fluence is set below the damage threshold of the stone. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：31122 / 31135
页数：14
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