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In this paper, a similar Fabry-Perot cavity structure utilizing multilayer film consisting of an ultrathin metal is demonstrated for absorbing the infrared ray. This has low emissivity in atmospheric window (3–5 and 8–14 ?m) high nonatmospheric (5–8 ?m). These properties improved stealth performance which causes 5–8 ?m to radiate more energy reduce its temperature. Based on this, periodic micro...