Time-resolved optical spectroscopy of wood
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Updated: Jul 5, 2026

Label-free in situ Imaging of Lignification in Plant Cell Walls
Published on: November 1, 2010
C D'Andrea1, A Farina, D Comelli
1CNR-INFM and CNR-IFN, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy. cosimo.dandrea@mail.polimi.it
Abstract:
We have proposed and experimentally demonstrated that picosecond time-resolved optical spectroscopy in the visible/near-infrared (NIR) region (700-1040 nm) is a useful technique for noninvasive characterization of wood. This technique has been demonstrated on both softwood and hardwood samples treated in different ways simulating the aging process suffered by waterlogged woods. In all the cases, alterations of absorption and scattering spectra were observed, revealing changes of chemical and structural composition.
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