Figure 4
From: Secure information transport by transverse localization of light

In (a) localization is preserved when A encodes K and B reads K. In (b) localization and the encoded information is lost when A and B use mutually incompatible bases X and K. In (e) detection probability of the message 72, (the positions space.) with relative value of failed detections (FD) and misdetections (MD). Note the Y log scale.