Abstract
Coupling of optics, thermodynamics and thermal radiation principle, this work simulated the photoinduced heat generation and thermal radiation arisen in plasmonic structures. The results showed that the thermal radiation properties can be regulated effectively, by tuning the morphology and structure parameters of plasmonic structures, or via combining these plasmonic structures reasonably. Furthermore, the thermal radiations in plasmonic structures were mapped by numerical approaches. The thermal radiation maps evidenced that the structure with small radius of curvature enhances the electromagnetic-field concentration which promotes heat generation and enhances thermal radiation. Additionally, we visually revealed that the adjacent coupling enhances the thermal emission.
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