title: A new method for obtaining transparent electrodes.
abstract: In this article, we propose a simple scheme to make a metallic film on a semi-infinite substrate optically transparent, thus obtaining a completely transparent electrode in a desired frequency range. By placing a composite layer consisting of dielectric and metallic stripes on top of the metallic one, we found that the back-scattering from the metallic film can be almost perfectly canceled by the composite layer under certain conditions, leading to transparency of the whole structure. We performed proof-of-concept experiments in the terahertz domain to verify our theoretical predictions, using carefully designed metamaterials to mimic plasmonic metals in optical regime. Experiments are in excellent agreement with full-wave simulations.
authors.affiliation: Department of Photonics Engineering, Technical University of Denmark, Kgs Lyngby 2800, Denmark. rmal@fotonik.dtu.dk
authors.forename: Radu
authors.initials: R
authors.lastname: Malureanu
authors.forename: Maksim
authors.initials: M
authors.lastname: Zalkovskij
authors.forename: Zhengyong
authors.initials: Z
authors.lastname: Song
authors.forename: Claudia
authors.initials: C
authors.lastname: Gritti
authors.forename: Andrei
authors.initials: A
authors.lastname: Andryieuski
authors.forename: Qiong
authors.initials: Q
authors.lastname: He
authors.forename: Lei
authors.initials: L
authors.lastname: Zhou
authors.forename: Peter Uhd
authors.initials: PU
authors.lastname: Jepsen
authors.forename: Andrei V
authors.initials: AV
authors.lastname: Lavrinenko
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry; D012542:Scattering, Radiation; D055053:Terahertz Radiation