等离子体子
材料科学
联轴节(管道)
质量(理念)
凝聚态物理
模式(计算机接口)
半金属
热的
热辐射
辐射
表面等离子体子
Weyl半金属
光电子学
物理
光学
量子力学
硅
气象学
冶金
操作系统
计算机科学
作者
Jize Wu,Hongju Li,Ceji Fu,Xiaohu Wu
标识
DOI:10.1016/j.ijthermalsci.2022.107902
摘要
In this work, we propose a composite multilayer structure consisting of a Weyl semimetal (WS) film and photonic crystal (PC) with a defect layer to achieve nonreciprocal thermal radiation with high quality factor. This high quality factor results from the strong coupling between Tamm plasmon (TP) and defect mode (DM). The quality factor of nonreciprocal thermal radiation can be as high as 221.27 at a wavelength of 9.736 μm. The magnetic field distribution inside the structure and the reflection spectrum of the photonic crystal are also shown, which is beneficial to reveal its physical mechanism. Based on the variation of absorption and emission spectrum with different defect layer thicknesses, the splitting appears in the figure, which proves the strong coupling between Tamm plasmon and defect mode. We believe that these results will provide a new way to realize nonreciprocal thermal radiation applications. • The nonreciprocal thermal radiation from a Weyl semimetal film covered multilayer photonic crystals is investigated. • The quality factor of nonreciprocal thermal radiation can be as high as 221.27 at a wavelength of 9.736 μm. • The high quality factor results from the coupling of Tamm plasmon and defect mode. • This work will provide a new way to realize nonreciprocal thermal radiation utilization based on Weyl semimetals.
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