Heat Transfer Effects on Defect Boundaries Captured by Digital Holographic Interferometry and Infrared Thermography Workstation: an Overview on Experimental Results

Tornari, Vivi; Andrianakis, Michalis; Chaban, A. A.; Kosma, Kyriaki

doi:10.1007/s40799-019-00336-w

Cited by 9 publications

(1 citation statement)

References 30 publications

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“…It is also known that laser cleaning, widely adopted for oil painting, is actually capable of generating cracks [18][19][20][21][22][23]. Furthermore, laser irradiation itself is also able to generate cracks [24][25][26][27]. Laser cleaning is a process for restoring the aesthetic of the painting through the photothermal, photochemical, and photomechanical effects [28,29].…”

Section: Introductionmentioning

confidence: 99%

Study of Crack Growth of Transparent Materials Subjected to Laser Irradiation by Digital Holography

et al. 2022

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The crack growth of transparent materials after laser wavelength irradiation was studied. It is known that laser irradiation is used in many applications for the ablation of undesired material and/or coatings. The impact of laser irradiation on cracks was studied using the digital holography (DH) technique. Transparent samples were irradiated using near-ultraviolet, visible, near-infrared, and infrared light. The DH system is able to detect cracks and crack growth of the transparent samples irradiated by a range of laser wavelengths. Results also show that light with infrared to near-infrared wavelengths has a great effect on crack growth. High-resolution photomechanical effects of laser irradiation on material expansion or/and generation of defects due to specific wavelengths are also illustrated. The DH system with a multispectral laser has practical applications for laser cleaning of painted artworks.

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