Prospects of pump-probe microscopy for revealing pigment identity and degradation

Martin C. Fischer; Yue Zhou; Heidi Kastenholz; Michael Topper; David Grass; Warren Warren

doi:10.1117/12.2675050

10 August 2023 Prospects of pump-probe microscopy for revealing pigment identity and degradation

Martin C. Fischer, Yue Zhou, Heidi Kastenholz, Michael Topper, David Grass, Warren Warren

Proceedings Volume PC12620, Optics for Arts, Architecture, and Archaeology (O3A) IX; PC1262001 (2023) https://doi.org/10.1117/12.2675050
Event: SPIE Optical Metrology, 2023, Munich, Germany

Abstract

We discuss applications of pump-probe microscopy to the investigation of pigments in artworks. In pump-probe, a series of ultrafast laser pulses probe molecular state dynamics, which is governed by several physical mechanisms that evolve on timescales ranging from sub-picoseconds to many microseconds. The interplay of these mechanisms can lead to complex dynamics and is sensitive to a pigment’s structure, composition, and environment. We describe strategies to interpret pump-probe dynamics and to disentangle the underlying contributions from different physical mechanisms. We also report on applications to the studies of Cadmium pigments, carbon-based black pigments, and their degradation mechanism.

Conference Presentation

Citation Download Citation

Martin C. Fischer, Yue Zhou, Heidi Kastenholz, Michael Topper, David Grass, and Warren Warren "Prospects of pump-probe microscopy for revealing pigment identity and degradation", Proc. SPIE PC12620, Optics for Arts, Architecture, and Archaeology (O3A) IX, PC1262001 (10 August 2023); https://doi.org/10.1117/12.2675050

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