Analysis of microfibril angle of wood fibers using laser microscope polarimetry

Polarized laser light microscopy is used to investigate single isolated wood fibers. The macerated Scots pine ( ) fibers are fixed for laser-optical and x-ray experiments perpendicularly on sawn slits of glass support plates. In the optical experiments, the fibers are fixed under a laser microscope...

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Bibliographic Details
Published in:Optical Engineering 2004-01, Vol.43 (1), p.186-191
Main Authors: Palviainen, Jari, Silvennoinen, Raimo, Rouvinen, Juha
Format: Article
Language:English
Subjects:
laser polarimetry
microfibril angle
wood fiber
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Summary:Polarized laser light microscopy is used to investigate single isolated wood fibers. The macerated Scots pine ( ) fibers are fixed for laser-optical and x-ray experiments perpendicularly on sawn slits of glass support plates. In the optical experiments, the fibers are fixed under a laser microscope and the electric field vector is rotated together with a linear polarizing plate. The images of the fibers, taken through our polarizing microscope, are grabbed consecutively with a charge-coupled device (CCD) camera, and they are recorded in the memory of a PC for analysis. The calculated values of microfibril angles from the responses of the laser polarimetry data correlate to the orientation of the microfibril angles. ©
ISSN:0091-3286
1560-2303
DOI:10.1117/1.1630057