Figure 6
From: Spectral effectiveness of engineered thermal cloaks in the frequency regime
Standard deviation ratio of Pendry's perfect cloak (red), a 10-layer homogenized cloak (green), a 20-layer homogenized cloak (black) and a 50-layer homogenized cloak (magenta) at angular frequencies ω = 0, 0.1, 1 and 3 rad.s−1.
The source is on the left so that heat diffuses from left to right. The vertical lines indicate the position of the cloaks. The (z) vertical axis gives the ratio of the deviation on a logarithmic scale, while the (x) horizontal axis is for the temperature of the isotherms. The horizontal dashed blue line indicates the height of minimum of the standard deviation ratio among all the studied cloaks at angular frequency ω.
