A recently developed nonlinear optical pump-probe microscopy technique uses modulation transfer to sensitively extract excited-state dynamics of endogenous biological pigments, such as eumelanin and pheomelanin. In this work, we use this method to image and characterize several inorganic and organic pigments used in historical art. We show substantial differences in the near-IR pump-probe signatures from nominally similar pigments and suggest extensions to art restoration.
© 2012 Optical Society of America
Original Manuscript: December 19, 2011
Revised Manuscript: February 23, 2012
Manuscript Accepted: February 27, 2012
Published: April 6, 2012
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics
Prathyush Samineni, Adele deCruz, Tana E. Villafaña, Warren S. Warren, and Martin C. Fischer, "Pump-probe imaging of historical pigments used in paintings," Opt. Lett. 37, 1310-1312 (2012)