PMC

Measured (dot) and simulated (solid line) detection profiles for (a) 1-cm and (b) 2-cm diffusers. For measured detection profiles, data points are means of measurements performed on three different diffusers and error bars are standard deviation.

Calculated profiles for 1-cm (solid line) and 2-cm (dashed line) diffusers show increasing scatterer concentration with distance from the proximal end of the diffuser.

Comparison of simulated detection profiles for diffusers with a scatterer gradient and without a dielectric reflector (solid line) versus diffusers with a dielectric reflector and constant scatterer concentration (dashed line). The solid line represents the simulation results presented in this paper, while the dashed line represents the simulation results from Baran and Foster.