Time-Resolved Optical Spectroscopy of Wood

Author

C. D'Andrea*, A. Farina, D. Comelli, ...

First Published May 1, 2008 Research Article

Article Information

Volume: 62 issue: 5, page(s): 569-574

Article first published online: May 1, 2008;Issue published: May 1, 2008
Received: September 06, 2007; Accepted: February 11, 2008

https://doi.org/10.1366/000370208784344424

C. D'Andrea*, A. Farina, D. Comelli, A. Pifferi, P. Taroni, G. Valentini, R. Cubeddu, L. Zoia, M. Orlandi, A. Kienle

CNR-INFM and CNR-IFN, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy (C.D., A.F., D.C., A.P., P.T., G.V., R.C.); Università Milano-Bicocca, Dipartimento di Scienze dell'Ambiente e del Territorio, Piazza della Scienza 1, 20126 Milano, Italy (L.Z., M.O.); and Institut für Lasertechnologien in der Medizin und Meßtechnik, Helmholtzstr. 12, D-89081 Ulm, Germany (A.K.)

Corresponding Author: * Author to whom correspondence should be sent. E-mail: 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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