Depth-Resolved Multilayer Pigment Identification in Paintings: Combined Use of Laser-Induced Breakdown Spectroscopy (LIBS) and Optical Coherence Tomography (OCT)

2013 ◽  
Vol 67 (8) ◽  
pp. 960-972 ◽  
Author(s):  
Ewa A. Kaszewska ◽  
Marcin Sylwestrzak ◽  
Jan Marczak ◽  
Wojciech Skrzeczanowski ◽  
Magdalena Iwanicka ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Laser Induced Breakdown Spectroscopy ◽  
Optical Coherence ◽  
Pigment Identification ◽  
Breakdown Spectroscopy ◽  
Combined Use ◽  
Laser Induced Breakdown

Pigment Identification in Painted Artworks: A Dual Analytical Approach Employing Laser-Induced Breakdown Spectroscopy and Raman Microscopy

2000 ◽  
Vol 54 (4) ◽  
pp. 463-469 ◽  
Author(s):  
Lucia Burgio ◽  
Robin J. H. Clark ◽  
Theodosia Stratoudaki ◽  
Michael Doulgeridis ◽  
Demetrios Anglos
Keyword(s):  
Analytical Data ◽  
Analytical Techniques ◽  
Raman Microscopy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Pigment Identification ◽  
Breakdown Spectroscopy ◽  
Combined Application ◽  
Laser Induced Breakdown ◽  
Materials Used ◽  
Byzantine Icon

The combined application of two laser-based analytical techniques—laser-induced breakdown spectroscopy (LIBS) and Raman microscopy—for pigment identification on painted artworks is demonstrated. Detailed spectral data are presented from analyses performed on a 19th century Byzantine icon, which was examined in order to identify the pigments used in the original painted structure, as well as in interventions carried out subsequently for restorative purposes. LIBS measurements yielded elemental analytical data which suggest the presence of certain pigments and, in addition, provide information on the stratigraphy of the paint layers. Identification of most pigments and of the materials used in the preparation layer was performed by Raman microscopy.

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

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