Fig. 3. Transmission model for delignified wood template based on Fresnel reflection theory. The green “squares” are surrounding the lumen space of the delignified wood template, which is filled with liquid. With respect to beam reflection inside the material: (a) represents no reflection and (b) reflection 2 times. (c) Comparison between T0, T0 + T2 and T0 + T2 + T4. (d) Transmission model fit of the transmittance values at wavelength 589 nm for both delignified balsa and birch samples.
