Abstract
Our study introduces a metamaterial with a straightforward disk-like configuration that exhibits two prominent absorption peaks at wavelengths of 3960 and 4197 nm, with absorption of 96.3% and 94.1%, respectively. The design not only proved to be convenient for the practical fabrication, but also revealed a resilience to the changes in structural parameters. Moreover, this offers versatility across a wide range of applications, due to the polarization-independent behavior. Additionally, the investigation on thermal emission by integrating the metasurface on a spiral structured heat source has yielded a promising result. The metasurface emitter reduced the energy consumption by 35%, compared with the blackbody emitter. The emission intensity at the aforementioned wavelength is 1.75 × 109 and 1.8 × 109 W·sr−1·m−3, respectively, indicating that the high potential of structure for the practical deployment in next-generation microheater of CO2 sensors.
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