Abstract

Four different hardwoods—yellow poplar, quaking aspen, white oak, and hard maple—have been subjected to a range of artificial weathering conditions, and their surfaces monitored with the use of diffuse reflectance infrared spectroscopy. The first two species show a weathering pattern rather similar to that of softwoods, whereas the latter two are more resistant to the effects of light and water. The differences in wood density are thought to be significant in the different behavior of the woods towards weathering, in addition to any contributing effects that might be caused by a variation in the overall chemical composition. After 2400 hours of full artificial weathering, all traces of lignin seem to have been removed from the surfaces of all four woods.

Optical properties of drying wood studied by time-resolved near-infrared spectroscopy

Keiji Konagaya, Tetsuya Inagaki, Ryunosuke Kitamura, and Satoru Tsuchikawa
Opt. Express 24(9) 9561-9573 (2016)

Automatic measurement of wood fiber orientation and knot detection using an optical system based on heating conduction

Vincent Daval, Guillaume Pot, Mohamed Belkacemi, Fabrice Meriaudeau, and Robert Collet
Opt. Express 23(26) 33529-33539 (2015)

Spectroscopic studies of wood-drying processes

Mats Andersson, Linda Persson, Mikael Sjöholm, and Sune Svanberg
Opt. Express 14(8) 3641-3653 (2006)

Performance of long-wave infrared band of microstructured heavily doped InAsSb on type II superlattice layer part 1: the photonic study

Clément Gureghian, Jean-Baptiste Rodriguez, Christophe Dupuis, Nathalie Bardou, Laurence Ferlazzo, Isabelle Ribet, Fernando Gonzalez-Posada, Thierry Taliercio, and Grégory Vincent
Opt. Express 32(8) 13438-13449 (2024)

Optical and radiometric models of the NOMAD instrument part II: the infrared channels - SO and LNO

I. R. Thomas, A.C. Vandaele, S. Robert, E. Neefs, R. Drummond, F. Daerden, S. Delanoye, B. Ristic, S. Berkenbosch, R. Clairquin, J. Maes, S. Bonnewijn, C. Depiesse, A. Mahieux, L. Trompet, L. Neary, Y. Willame, V. Wilquet, D. Nevejans, L. Aballea, W. Moelans, L. De Vos, S. Lesschaeve, N. Van Vooren, J.-J. Lopez-Moreno, M. R. Patel, G. Bellucci, and the NOMAD Team
Opt. Express 24(4) 3790-3805 (2016)