Chalcogenide phase-change material-based, ultrathin, all-dielectric tunable mid-infrared metamaterial perfect absorber
Conference on Lasers and Electro-Optics（2022）
Abstract
Ultrathin, all-dielectric, metamaterial design based on an asymmetrical optical micro-/nanocavity, enclosing a 10 nm thick Ge2Sb2Te5 photoabsorber film, is inversely optimized for perfect tunable absorption in the mid-infrared. The absorption can be actively/geometrically pre-/post-fabrication spectrally tuned.
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Key words
ultrathin metamaterial,metamaterial design,perfect tunable absorption,photoabsorber film,all-dielectric tunable mid-infrared metamaterial perfect absorber,asymmetrical optical microcavity,asymmetrical optical nanocavity,chalcogenide phase-change material-based metamaterial,size 10.0 nm,Ge2Sb2Te5
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