Diffusors are widely used optical components having numerous applications. They are commonly used to homogenize light beams and to create particular intensity distributions. The angular scattering profile of bulk scattering diffusing materials is determined by three bulk scattering parameters that are, however, not commonly available. This hampers an accurate implementation of bulk diffusors in ray tracing simulations. In this paper, the bulk scattering parameters of a concentration series of milk diluted with water were determined with the inverse adding–doubling method. Using these values as input, the macroscopic angular scattering profile was simulated using ray tracing software. The simulation results were compared to experimental data, and a good agreement between measured and simulated data was found. The method was also proven to be successful when applied to commercial diffusors.
© 2013 Optical Society of America
Original Manuscript: February 25, 2013
Revised Manuscript: May 16, 2013
Manuscript Accepted: May 17, 2013
Published: June 12, 2013
Vol. 8, Iss. 7 Virtual Journal for Biomedical Optics
Sven Leyre, Frédéric B. Leloup, Jan Audenaert, Guy Durinck, Johan Hofkens, Geert Deconinck, and Peter Hanselaer, "Determination of the bulk scattering parameters of diffusing materials," Appl. Opt. 52, 4083-4090 (2013)