On Optimal Frequencies for Reconstruction of a One-Dimensional Profile of Gradient Layer’s Refractive Index

Figure 4

The relative error of reconstruction of for the parabolic layer versus the number of iterations . Refractive index is continuous in the whole domain. The solid curve corresponds to reconstructing frequencies 23–25 THz, the red dashed curve corresponds to reconstructing frequencies 50–52 THz, and the dotted curve corresponds to reconstructing frequencies 70–72 THz.