Fourier Analysis of Slow and Fast Image Propagation through Single and Coupled Image Resonators

Figure 4

(a)−(d) Numerical simulation of the reflected and transmitted images in the space-time (𝑥-𝑡) domain for a single resonator. (a)–(c) Reflected images from the single resonator for under, critical, and over coupling conditions, respectively. (d) Transmitted image from the single resonator. (e) Input image of width 1.4 mm (the horizontal axis) encoded on the temporal 25 ns Gaussian pulse (the vertical axis). (f) Illustration of the cross-section of the 2D image that was considered for time evolution analysis. The earlier, intermediate, and later time profiles are indicated by the notations 1, 2, and 3, respectively, in Figures 4(a)–4(d).