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

被引：14

作者：

Konagaya, Keiji ^{[1
,2
]}

Inagaki, Tetsuya ^{[1
]}

Kitamura, Ryunosuke ^{[1
]}

Tsuchikawa, Satoru ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Bioagr Sci, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan

[2] Kyoto Univ, Grad Sch Agr, Kyoto 6068502, Japan

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 09期

基金：

日本学术振兴会;

关键词：

LIGHT-SCATTERING; BACKSCATTERING; MATRIX; CELLS;

D O I：

10.1364/OE.24.009561

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measured the optical properties of drying wood with the moisture contents ranging from 10% to 200%. By using time-resolved near-infrared spectroscopy, the reduced scattering coefficient mu(s)' and absorption coefficient mu(a) were determined independent of each other, providing information on the chemical and structural changes, respectively, of wood on the nanometer scale. Scattering from dry pores dominated, which allowed us to determine the drying process of large pores during the period of constant drying rate, and the drying process of smaller pores during the period of decreasing drying rate. The surface layer and interior of the wood exhibit different moisture states, which affect the scattering properties of the wood. (C) 2016 Optical Society of America

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收藏

页码：9561 / 9573

页数：13

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