Femtosecond pulse laser cleaning of Makrana marble and semi- precious stones for the preservation of the Holy Samadh
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Détails bibliographiques
| Auteur(s): |
Julia Brand
(Laser Physics Centre, Department of Quantum Science and Technology, Research School of Physics, Australian National University, Canberra ACT 2601, Australia)
Steve Madden (Laser Physics Centre, Department of Quantum Science and Technology, Research School of Physics, Australian National University, Canberra ACT 2601, Australia) Andrei V. Rode (Laser Physics Centre, Department of Quantum Science and Technology, Research School of Physics, Australian National University, Canberra ACT 2601, Australia) Ludovic Rapp (Laser Physics Centre, Department of Quantum Science and Technology, Research School of Physics, Australian National University, Canberra ACT 2601, Australia) Alison Wain (Faculty of Art and Design, University of Canberra, Canberra ACT 2617, Australia) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Congress: Engineering for Sustainable Development, New Delhi, India, 20-22 September 2023 | ||||
| Publié dans: | IABSE Congress New Delhi 2023 | ||||
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| Page(s): | 372-379 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| DOI: | 10.2749/newdelhi.2023.0372 | ||||
| Abstrait: |
This study examines the use of heat-free femtosecond pulse laser technology for the cleaning of Makrana marble and semi-precious stones from the Soami Bagh Samadh temple in Agra, India. We determined the ablation thresholds of the semi-precious stones used in the inlay stonework with femtosecond laser pulses and demonstrated that laser ablation can effectively remove dust layers and environmental staining from the marble surfaces without damaging the original material. We demonstrated, by using optical microscopy, colorimetry, scanning electron microscopy and Raman spectroscopy, that femtosecond laser processing of surfaces reduced the risk of thermal damage due to minimal heat generation and allowed the preservation of the original surface structure. This research suggests that femtosecond pulse laser technology can be a sustainable and effective cleaning method for heritage places such as the Holy Samadh temple. |
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