@article{oai:oist.repo.nii.ac.jp:00000197,
 author = {Harada, Takaaki and Spence, Stephanie and Margiolakis, Athanasios and Deckoff-Jones, Skylar and Ploeger, Rebecca and Shugar, Aaron N. and Hamm, James F. and Dani, Keshav M. and Dani, Anya R.},
 issue = {2},
 journal = {Materials},
 month = {Jan},
 note = {Recently, ultrafast lasers exhibiting high peak powers and extremely short pulse durations have created a new paradigm in materials processing. The precision and minimal thermal damage provided by ultrafast lasers in the machining of metals and dielectrics also suggests a novel application in obtaining precise cross-sections of fragile, combustible paint layers in artwork and cultural heritage property. Cross-sections of paint and other decorative layers on artwork provide critical information into its history and authenticity. However, the current methodology which uses a scalpel to obtain a cross-section can cause further damage, including crumbling, delamination, and paint compression. Here, we demonstrate the ability to make controlled cross-sections of paint layers with a femtosecond pulsed laser, with minimal damage to the surrounding artwork. The femtosecond laser cutting overcomes challenges such as fragile paint disintegrating under scalpel pressure, or oxidation by the continuous-wave (CW) laser. Variations in laser power and translational speed of the laser while cutting exhibit different benefits for cross-section sampling. The use of femtosecond lasers in studying artwork also presents new possibilities in analyzing, sampling, and cleaning of artwork with minimal destructive effects.},
 title = {Obtaining cross-sections of paint layers in cultural artifacts using femtosecond pulsed lasers},
 volume = {10},
 year = {2017}
}