微结构热辐射器的光谱调控特性分析

In this paper, plasma dispersion model on W surface with grating structure is built, and the finite-difference time-domain method is adopted to study the effect on radiative characteristics of microstructure due to the microcavity resonance and the surface plasmon polaritons. Parameter studies on key performances variables, such as geometry dimension, spectrum, polarization, are analyzed on emission characteristics of the radiatior with microstructure. A radiator with microcavity arrays strucutre is optimized the geometry design with well emission performance at the spectral response band. The results of this paper have great theoretical meaning and practical value to design the radiator of the thermo-photo-voltaic (TPV) cell.