Angle-robust and tunable mid-infrared absorption in a Ge grating/SrTiO3/VO2 hybrid metastructure on a metallic substrate
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We propose a dynamically tunable and angle-robust mid-infrared (mid-IR) absorber based on a hybrid metastructure composed of a top-layer Ge grating, an ultrathin SrTiO3 polar dielectric layer, a thermochromic VO2 film, and a metallic substrate. The optical res... ...
