Determination of the refractive index of paper with clearing agents

Tapio Fabritius; Juha Saarela; Risto Myllyla

doi:10.1117/12.660416

9 June 2006 Determination of the refractive index of paper with clearing agents

Tapio Fabritius, Juha Saarela, Risto Myllyla

Proceedings Volume 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications; 60530X (2006) https://doi.org/10.1117/12.660416
Event: International Conference on Lasers, Applications, and Technologies 2005, 2005, St. Petersburg, Russian Federation

Abstract

The refractive index of paper was determined by measuring the propagation delay of photons in optically cleared paper boards. The determination was based on the assumption that photon propagation delay achieves minimum value as the paper is optimally cleared. The measured paper sheets was made from elemental chlorine-free market pulp, i.e. fully bleached, unbeaten, softwood kraft pulp. Nine different clearing agents with a refraction index between 1.329 and 1.741 were eLuperimented with. According to the streakmem measurements, the refractive index of the test paper was 1.557.

Citation Download Citation

Tapio Fabritius, Juha Saarela, and Risto Myllyla "Determination of the refractive index of paper with clearing agents", Proc. SPIE 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications, 60530X (9 June 2006); https://doi.org/10.1117/12.660416

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