期刊
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
卷 39, 期 1, 页码 146-149出版社
JAPAN J APPLIED PHYSICS
DOI: 10.1143/JJAP.39.146
关键词
light scattering; coherent backscattering; transport mean free path; Mie scattering; scattering cross section
The transport mean free path l* characterizing the light diffusion phenomenon in highly dispersed media was theoretically predicted and compared with the values observed by the experiments of coherent backscattering. The Mie scattering theory for a spherical particle was used to calculate the scattering cross section, that leads to the l* of the suspension together with the number density of the particles. The anisotropy in a single scattering process was also taken into account. A series of experiments was made in polystyrene latex with 5% and 10% volume fractions and different diameters ranging from 0.1 mu m to 3 mu m. The experimental values of l* obtained from the coherent backscattering peak were in good agreement with the theoretical predictions. This study is performed to give a solid base to the coherent backscattering phenomenon as a new approach for material evaluation of dispersed media.
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