TY - JOUR
T1 - Removal of graffiti from quarry stone by high power diode laser
AU - Penide, J.
AU - Quintero, F.
AU - Riveiro, A.
AU - Sánchez-Castillo, A.
AU - Comesaña, R.
AU - Del Val, J.
AU - Lusquiños, F.
AU - Pou, J.
PY - 2013/4
Y1 - 2013/4
N2 - The integrity of architectural monuments in urban areas is threatened by numerous attacks, among which the graffiti is sometimes one of the most important. Particularly, Morelia's historic center (Mexico) (appointed World Heritage Site by UNESCO) suffers, for some years, a high number of graffiti. Most of these monuments in Morelia were built using a local stone called Pink Morelia Quarry. In this paper, we present the results of a study on the feasibility to remove the graffiti from Pink Morelia Quarry using a high power diode laser treatment. An extensive experimental analysis of the operating conditions has been carried out leading to successful results. The optimal parameters to achieve a total removal of graffiti have been determined. We concluded that continuous wave regime leads to better results than modulated wave regime, additionally, a two laser passes process demonstrated a high performance.
AB - The integrity of architectural monuments in urban areas is threatened by numerous attacks, among which the graffiti is sometimes one of the most important. Particularly, Morelia's historic center (Mexico) (appointed World Heritage Site by UNESCO) suffers, for some years, a high number of graffiti. Most of these monuments in Morelia were built using a local stone called Pink Morelia Quarry. In this paper, we present the results of a study on the feasibility to remove the graffiti from Pink Morelia Quarry using a high power diode laser treatment. An extensive experimental analysis of the operating conditions has been carried out leading to successful results. The optimal parameters to achieve a total removal of graffiti have been determined. We concluded that continuous wave regime leads to better results than modulated wave regime, additionally, a two laser passes process demonstrated a high performance.
KW - Graffiti removal
KW - High power diode laser
KW - Pink Morelia Quarry
UR - http://www.scopus.com/inward/record.url?scp=84872930781&partnerID=8YFLogxK
U2 - 10.1016/j.optlaseng.2012.12.002
DO - 10.1016/j.optlaseng.2012.12.002
M3 - Article
AN - SCOPUS:84872930781
SN - 0143-8166
VL - 51
SP - 364
EP - 370
JO - Optics and Lasers in Engineering
JF - Optics and Lasers in Engineering
IS - 4
ER -
