公开(公告)号：US20240019604A1

公开(公告)日：2024-01-18

申请号：US18222439

申请日：2023-07-15

申请人： University of North Texas

发明人： Zihao Richard Zhang

IPC分类号： G02B1/10

CPC分类号： G02B1/10

摘要： A monolithic dielectric coating composed of microscale periodic high-contrast gratings on multilayers of high and low refractive index optical materials is described, which is deposited on metal thin-films of flexible polymer insulation sheeting. The emittance can be minimized to any blackbody temperature, using parameter optimization of high-contrast grating phase-shift mode conditions. The high-low refractive index infrared-transparent multilayer is based on Fabry-Pérot cavity, but with non-quarter-wave thicknesses to achieve multilayer insulation conductance below that of metal films. This ultralow emittance coating is most relevant to thermal management of refrigeration and electronic components.