Wideband omnidirectional infrared absorber with a patchwork of plasmonic nanoantennas.
نویسندگان
چکیده
In this Letter, we demonstrate experimentally that a patchwork of four metal-insulator-metal patches leads to an unpolarized wideband omnidirectional infrared absorption. Our structure absorbs 70% of the incident light on a 2.5 μm bandwidth at 8.5 μm. It paves the way to the design of wideband efficient plasmonic absorbers in the infrared spectrum.
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عنوان ژورنال:
- Optics letters
دوره 37 6 شماره
صفحات -
تاریخ انتشار 2012