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Tuning infrared absorption in hyperbolic polaritons coated silk fibril composite
Affiliation:1.School of Science, JiangNan University, Wuxi 214122, China;2.School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China
Abstract:Advanced textiles for thermal management give rise to many functional applications and unveil a new frontier for the study of human thermal comfort. Manipulating the coated quasi-particles between the composite components offers a platform to study the advanced thermoregulatory textiles. Here, we propose that coating the hyperbolic polariton can be an effective tool to tune infrared absorption in hexagonal boron nitride-coated silk composite. Remarkably, we achieve significant tuning of the infrared absorption efficiency of silk fibrils through the designed hexagonal boron nitride film. The underlying mechanism is related to resonance coupling between hyperbolic phonon polaritons. We find a notably high infrared absorption efficiency, nearly 3 orders larger than that without hBN coating, which can be achieved in our composite system. Our results indicate the promising future of advanced polariton-coated textiles and open a pathway to guide the artificial-intelligence design of advanced functional textiles.
Keywords:thermal radiation  thermal management  infrared absorption  hyperbolic polaritons  
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