Title :
Tunable diode laser spectroscopy for gas detection inside scattering media
Author :
Persson, Linda ; Sjöholm, Mikael ; Hong, Gao ; Andersson, Mats ; Svanberg, Sune
Author_Institution :
Atomic Phys. Div., Lund Inst. of Technol.
Abstract :
The present communication is mainly focused on molecular oxygen detection in porous organic matter, through a tunable diode laser spectroscopy. Initial measurements on wood were preformed in order to illustrate the influence of the density and anisotropy of the sample on the GASMAS-signal. Additional measurements were performed on horticultural produces, in which the concentration of the molecular oxygen gas is of crucial importance for the ripening process and the quality of the produces. The methodology presented is general and can be applied to a large number of problems concerning gas exchange in porous materials, which can be of interest in applications ranging from biological and medical to industrial and pharmaceutical
Keywords :
chemical variables measurement; horticulture; laser tuning; measurement by laser beam; molecular biophysics; oxygen; semiconductor lasers; spectrochemical analysis; GASMAS-signal; gas detection; gas exchange; horticultural products; molecular oxygen detection; porous organic matter; ripening process; scattering media; tunable diode laser spectroscopy; Anisotropic magnetoresistance; Biological materials; Biomedical materials; Density measurement; Diode lasers; Gas industry; Performance evaluation; Scattering; Spectroscopy; Tunable circuits and devices;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Conference_Location :
Munich
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568422
