Abstract:Surfaces with high directional electromagnetic absorption or emission in the infrared (IR) region of the electromagnetic spectrum have numerous potential applications, however many of the relevant surfaces suffer from extremely narrow bandwidth and/or polarization dependence. Here we demonstrate broadband directional emissivity in the mid-infrared range of 7.5 to 14 µm, that is not dependent on polarization. This was achieved with angled micro-scale structures that are overlaid with nano-scale features on stai… Show more
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