Design of Multimodal Absorption in the Mid-IR: A Metal Dielectric Metal Approach.

ABSTRACT: Specific control on the mid-infrared (mid-IR) emission properties is attracting increasing attention for thermal camouflage and passive cooling applications. Metal-dielectric-metal (MDM) structures are well known to support strong magnetic polariton resonances in the optical and near-infrared range. We extend the current understanding of such an MDM structure by specifically designing Au disc arrays on top of ZnS-Au-Si substrates and pushing their resonances to the mid-IR regime. Therefore, we combine fabrication via lift-off photolithography with the finite element method and an inductance-capacitance model. With this combination of techniques, we demonstrate that the magnetic polariton resonance of the first order strongly depends on the individual disc diameter. Furthermore, the fabrica

SUBMITTER: Pech-May NW 

PROVIDER: S-EPMC7877563 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature