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Optical Engineering

Analysis of microfibril angle of wood fibers using laser microscope polarimetry
Author(s): Jari Palviainen; Raimo Veil Johannes Silvennoinen; Juha Rouvinen
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Paper Abstract

Polarized laser light microscopy is used to investigate single isolated wood fibers. The macerated Scots pine (Pinus sylvestris L.) 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.

Paper Details

Date Published: 1 January 2004
PDF: 6 pages
Opt. Eng. 43(1) doi: 10.1117/1.1630057
Published in: Optical Engineering Volume 43, Issue 1
Show Author Affiliations
Jari Palviainen, Univ. of Joensuu (Finland)
Raimo Veil Johannes Silvennoinen, Univ. of Joensuu (Finland)
Juha Rouvinen, Univ. of Joensuu (Finland)


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