Fig. 6: THz/X-band digital camouflage.

A THz/MW comparison of the digital camouflage performance between the device and two references (fabric and paint on Al plate). A steel plate is placed under the samples as a target. a THz experimental images captured at distances of 0.1 m, b THz simulation images captured at distances of 0.4 m, c X-band experimental images captured at distances of 0.1 m, d X-band simulation images captured at distances of 0.4 m. The THz digital camouflage mimics water characteristics. The X-band digital camouflage is presented under SAR imaging, along with MW absorption camouflage. The corresponding optical images of the device and the references are shown in Fig. 4a.