Kouwenhoven, K. (author), Elwakil, I. (author), van Wingerden, J. (author), Murugesan, V. (author), Thoen, David (author), Baselmans, J.J.A. (author), de Visser, P.J. (author) Typical materials for optical Microwave Kinetic Inductance Detetectors (MKIDs) are metals with a natural absorption of ∼ 30–50% in the visible and near-infrared. To reach high absorption efficiencies (90–100%) the KID must be embedded in an optical stack. We show an optical stack design for a 60 nm TiN film. The optical stack is modeled as...
journal article 2022