MEASUREMENT OF LIGHT-SCATTERING AT 0-DEGREES BY SMALL PARTICLE SUSPENSIONS
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Measurements of the intensity of the light scattered by 11 m polystyrene spheres suspended in water have been made as a function of angle from -0.05 to 0.05. Data have also been obtained for scattering at 0 as a function of particle concentration. As the particle concentration increases the sample transmission decreases monotonically but the scattered light intensity at 0 increases monotonically as expected. This new measurement technique is based on coherent two beam coupling in a photorefractive BaTiO3 crystal.