Laser spectroscopy of free molecular oxygen dispersed in wood materials

被引:25
作者
Alnis, J
Anderson, B
Sjöholm, M
Somesfalean, G
Svanberg, S
机构
[1] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden
[2] Univ Latvia, Inst Atom Phys & Spect, LV-1586 Riga, Latvia
[3] Univ Cape Coast, Laser & Fibre Opt Ctr, Cape Coast, Ghana
来源
APPLIED PHYSICS B-LASERS AND OPTICS | 2003年 / 77卷 / 6-7期
关键词
D O I
10.1007/s00340-003-1299-z
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The recently introduced Gas in Scattering Media Absorption Spectroscopy (GASMAS) technique is applied to the study of various wood samples. Molecular oxygen in the pores of the strongly scattering material is detected using diode laser spectroscopy around 760 nm. Diffuse light propagation in these media is studied by time-dispersion measurements. Furthermore, anisotropy related to the fibre structure of wood and gas diffusion properties are studied. Promising extensions of the experiments are discussed.
引用
收藏
页码:691 / 695
页数:5
相关论文
共 11 条
[1]  
[Anonymous], 1993, MED OPTICAL TOMOGRAP
[2]   THE THEORETICAL BASIS FOR THE DETERMINATION OF OPTICAL PATHLENGTHS IN TISSUE - TEMPORAL AND FREQUENCY-ANALYSIS [J].
ARRIDGE, SR ;
COPE, M ;
DELPY, DT .
PHYSICS IN MEDICINE AND BIOLOGY, 1992, 37 (07) :1531-1560
[3]   Lidar remote sensing of stone cultural heritage: detection of protective treatments [J].
Ballerini, G ;
Bracci, S ;
Pantani, L ;
Tiano, P .
OPTICAL ENGINEERING, 2001, 40 (08) :1579-1583
[4]   A DIFFUSION-THEORY MODEL OF SPATIALLY RESOLVED, STEADY-STATE DIFFUSE REFLECTANCE FOR THE NONINVASIVE DETERMINATION OF TISSUE OPTICAL-PROPERTIES INVIVO [J].
FARRELL, TJ ;
PATTERSON, MS ;
WILSON, B .
MEDICAL PHYSICS, 1992, 19 (04) :879-888
[5]   A novel approach to the in situ measurement of oxygen concentrations in the sapwood of woody plants [J].
Gansert, D ;
Burgdorf, M ;
Lösch, R .
PLANT CELL AND ENVIRONMENT, 2001, 24 (10) :1055-1064
[6]   MEASUREMENT OF GASEOUS OXYGEN USING DIODE-LASER SPECTROSCOPY [J].
KROLL, M ;
MCCLINTOCK, JA ;
OLLINGER, O .
APPLIED PHYSICS LETTERS, 1987, 51 (18) :1465-1467
[7]  
Lognoli D., 2003, APPL PHYS B, V76, P1
[8]   Analysis of gas dispersed in scattering media [J].
Sjöholm, M ;
Somesfalean, G ;
Alnis, J ;
Andersson-Engels, S ;
Svanberg, S .
OPTICS LETTERS, 2001, 26 (01) :16-18
[9]  
SJOHOLM M, IN PRESS DETERMINATI
[10]   Concentration measurement of gas embedded in scattering media by employing absorption and time-resolved laser spectroscopy [J].
Somesfalean, G ;
Sjöholm, M ;
Alnis, J ;
af Klinteberg, C ;
Andersson-Engels, S ;
Svanberg, S .
APPLIED OPTICS, 2002, 41 (18) :3538-3544