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Spatial and temporal spreading behaviors of light in glass particle-dispersed epoxy matrix composites evaluated by pico-second order light pulse profile

Published online by Cambridge University Press:  31 January 2011

K. Matsumura  and
Y. Kagawa
K. Matsumura
Affiliation:
Institute of Industrial Science, The University of Tokyo 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan
Y. Kagawa*
Affiliation:
Institute of Industrial Science, The University of Tokyo 4-6-1, Komaba, Meguro-ku, Tokyo 153-8505, Japan
*
a)Address all correspondence to this author. e-mail: kagawa@iis.u-tokyo.ac.jp
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Abstract

The light diffusion behavior in a glass particle-dispersed epoxy matrix composite was evaluated using a pico-second order light pulse. Change in pulse profile was detected, and this change in different detection areas is discussed. The light scattering behavior in the composite was directly observed, and the result was compared with the pulse profile change. This change appeared in the pulse shape, and depended on the particle volume fraction and the area of light detected. The maximum probable light path extension and the light transmittance were strongly correlated with the direct observation result of spatial spreading behavior of light in the composite. The combination use of (i) maximum probable light path extension and (ii) light transmittance was effective in evaluating the light-scattering behavior of the composite. The method is applicable to evaluation of the light-scattering process in light-transmitting materials.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 11 , November 2003 , pp. 2644 - 2652
Copyright
Copyright © Materials Research Society 2003

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