Figure 3
From: Optical dispersion control in surfactant-free DNA thin films by vitamin B2 doping
(a) Comparison of the refractive indices between surfactant-free DNA films with thicknesses of 18 nm made by spin coating and 194 nm made by drop casting in the visible spectral range. (b) Refractive index as a function of the thickness of surfactant-free DNA films at λ = 632.8 nm. Error bars in (a) and (b) are the greater of standard errors in the ellipsometric fit and standard errors in the mean (SEM) of the measurements.
