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- W3033046274 abstract "The miniaturization of infrared gas sensors is largely hindered by expensive and bulky laser sources as well as the use of optical filters. In this work, we propose a dual-band, directional thermal emitter based on compact W-Si-Cu metasurfaces to address this issue. This metasurface emitter is designed to support two nondispersive magnetic polariton modes that exhibit distinct directional thermal emission profiles, thus enabling dual-band detection without the need of optical filters. Specifically, we evaluate the feasibility of such dual-band filterless detection by adapting the metasurface emitter to CO2 sensing. The model of sensing system shows a selective relative sensitivity of CO2 which is 3.2 times higher than that using a blackbody emitter, and a relative sensitivity of temperature of emitter about 1.32%/K." @default.
- W3033046274 created "2020-06-12" @default.
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- W3033046274 date "2020-06-03" @default.
- W3033046274 modified "2023-09-26" @default.
- W3033046274 title "Magnetic polariton-based thermal emitter for dual-band filterless gas sensing" @default.
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