Fig. 1. LC-OCT vertical image (i.e., cross-sectional view) of a bilayered phantom. The LC-OCT image is displayed in a logarithmic intensity scale (arbitrary unit).

Fig. 2. (a) 3D LC-OCT image (horizontal or en face view and vertical or cross-sectional view) of a phantom made of PDMS and TiO₂ particles, in logarithmic intensity scale and (b) averaged intensity profile I(z) in the 3D LCOCT image as a function of depth, in logarithmic scale. A linear regression (red line) is applied on the intensity profile to obtain the measurement of the pair of observables μ_eff and ρ.

Fig. 3. Ratio of μ_eff/ρ as a function of g, calculated for λ = 800 nm, NA = 0.5 and Δz = 1.2 μm.

Fig. 4. Averaged intensity profile R(z) in the 3D LC-OCT image of a bilayered phantom as a function of depth (in logarithmic scale). For each layer, a linear regression (red line) is applied on the intensity profile to obtain the measurement of the pair of observables (ρ_top, μ_top) and (ρ_bottom, μ_bottom). The value of ρ_bottom is retrieved from the intercept with the interface between the two layers (z = 110 μm) corrected from attenuation in the top layer.

Fig. 5. Comparison of μ_s values obtained by LC-OCT and combined integrating spheres and collimated transmission measurements on monolayered phantoms. Mean values and error bars were determined as explained in detail in Section 2.4.

Fig. 6. Comparison of g values obtained by LC-OCT and combined integrating spheres and collimated transmission measurements on monolayered phantoms. Mean values and error bars were determined as explained in detail in Section 2.4.

Fig. 7. High-resolution microscopic images of phantom 9 acquired with a 1.35 NA objective. (a) Image acquired in a homogeneous region without aggregates and (b) image acquired in a region with particle aggregates.

Fig. 8. Comparison of μ_s and g values (mean ± standard deviation) obtained by LC-OCT and combined integrating spheres and collimated transmission measurements on two different bilayered phantoms.

Table 0. Summary of bilayered phantoms composition, given by the material, size and weight concentration of the scattering particles embedded in PDMS.

Table 0. Summary of monolayered phantoms composition. All phantoms are made of a PDMS matrix including scattering particles of different materials, sizes and concentrations.