E213 Wavelength-Selective Thermal Radiation Control Using Metamaterial

Abstract

We numerically demonstrate wavelength-selective absorption in core-shell deposited on top of a continuous Au film by excitation of magnetic resonance. The resonance of magnetic polariton at wavelength 653 nm is confirmed by electromagnetic Geld distribution. The influences of Au core diameter, SiO_2 shell thickness on the resonance wavelength are studied with 3D finite-differential time-domain (FDTD) method. The fundamental study will facilitate the development of a core-shell metamaterial for energy and sensing applications.