Author:
Spettel J,Stocker G,Dao T D,Jannesari R,Tortschanoff A,Saeidi P,Pühringer G,Dubois F,Fleury C,Consani C,Grille T,Aschauer E,Moridi M,Jakoby B
Abstract
Abstract
We numerically and experimentally investigate aluminum metal (Al), gold-tin (AuSn) and titanium-tungsten (TiW) metallic alloys as plasmonic materials in the mid-infrared (MIR) region using spectroscopic ellipsometry and reflection measurements of gratings. The angle dependence of the specular reflectance of shallow gratings is investigated using a free-beam measurement setup and compared to simulations. It is shown that the deep and narrow resonances observed for all three materials match the associated prediction from simulations.
Subject
General Physics and Astronomy