Fig. 5.

Analysis of retardation fluctuations about the local mean $\delta \left(t\right)-\overline{\delta }$ in the ordered staggered and aligned arrays ($\beta =0$). Kymographs of the fluctuations along $x=0$ for (A and B) $\text{Wi}\approx 0.75$, (C and D) $\text{Wi}\approx 7.5$, and (E and F) $\text{Wi}\approx 75$. PSD distributions of the fluctuations for (G) $\text{Wi}\approx 0.75$, (H) $\text{Wi}\approx 7.5$, and (I) $\text{Wi}\approx 75$, taken along the correspondingly colored horizontal dashed lines in A and B.