title: Particle sizing of colloidal suspensions by low-coherence fiber optic dynamic light scattering.
abstract: A low-coherence fiber optic dynamic light scattering technique is used to measure the particle size distributions of colloidal suspensions with different volume fractions. We detect electric field autocorrelation function of the singly backscattered light from a sample and use the CONTIN algorithm to obtain the particle size distributions. As a result, in the range of volume fractions from 0.01 to 0.10 of monodispersive colloidal suspensions, the mean particle size with the deviation within 4% and the polydispersity approximate 5% can be determined for particles of different radii. The results demonstrate that the low-coherence fiber optic dynamic light scattering technique is effective in measuring particle size of colloidal suspensions.
authors.affiliation: School of Physics Science and Technology, Central South University, Changsha 410083, China. xhui73@csu.edu.cn
authors.forename: Hui
authors.initials: H
authors.lastname: Xia
authors.forename: Yuan Yuan
authors.initials: YY
authors.lastname: Xiao
authors.forename: Hao
authors.initials: H
authors.lastname: Huang
authors.forename: Shao Hua
authors.initials: SH
authors.lastname: Tao
authors.forename: Xu
authors.initials: X
authors.lastname: Lin
mesh_terms: D003102:Colloids / Q000737:chemistry*; D008027:Light; D010316:Particle Size; D012542:Scattering, Radiation
chemical_list: D003102:Colloids