Abstract

We explore the potential of Diffuse Optical Imaging (DOI) as an analytical method for particle characterization in dense colloidal dispersions. We propose a perpendicular DOI configuration to simultaneously estimate the extinction coefficient along the direction of incident radiation and the phase function along an orthogonal to this direction. Our experiments show that estimating the two independent parameters allows simultaneous quantification of both particle size and concentration in optically dense monodisperse colloids.

© 2017 Optical Society of America