Abstract

We demonstrate extraordinarily spectrally selective narrowband mid-infrared radiation absorbance and thermal emittance with the strong surface enhancement of molecular infrared absorption (SEIRA) using mid-midinfrared metasurfaces. This was achieved by harnessing mode coupling between a plasmonic metal-insulator-metal (MIM) metasurface and molecular vibrational mode resonances. We found that the weak/strong coupling has a high potential for the future application of thermal emitters for mid-infrared light sources. We will present recent advances in the coupling of molecular vibration and metasurfaces.

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