Fig. 1: Principle for whole-infrared-band and visible-band camouflage compatible with radiative heat dissipation.
From: Whole-infrared-band camouflage with dual-band radiative heat dissipation
a Typical detection bands ranging from visible to long-wave infrared and two primary signal sources: the reflection of solar radiation and thermal emission of the object. b The absorptivity/emissivity spectrum (black line) of an ideal wavelength-selective emitter designed to counter multiband detectors. The red and blue areas represent the solar irradiance spectrum and atmosphere transmittance spectrum, respectively. c–e The band-integrated irradiance of solar radiance and blackbody radiation at various object temperatures in the NIR, SWIR, and MWIR bands. The total detected signal intensity of objects with different average emissivity (ε = 0.25, 0.5, 0.75) are plotted in solid lines
