Epsilon-near-zero thin-film metamaterials for wideband near-perfect light absorption
Evan M. Smith, Jinnan Chen, Joshua R. Hendrickson, Justin W. Cleary, Chandriker Kavir Dass, Amber Reed, Shivashankar Vangala, Junpeng Guo
Abstract
Absorptive metamaterials made of epsilon-near-zero indium tin oxide and silicon dioxide films are designed and fabricated for wideband perfect light absorption near the epsilon-near-zero wavelength. By increasing the number of bilayers, we achieve over 90% absorption in a spectral bandwidth of 0.95 microns.
Topics & Concepts
Materials scienceIndium tin oxideMetamaterialWidebandOptoelectronicsAbsorption (acoustics)OpticsWavelengthThin filmNanotechnologyPhysicsComposite materialMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface TechnologiesPlasmonic and Surface Plasmon Research