Wide-angle and high-efficiency flat retroreflector.
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DOI: 10.1364/oe.461210
Abstract: We propose a flat retroreflector that can efficiently reflect the electromagnetic waves back along its incident direction in a wide continuous range of angles. This retroreflector consists of a quadratic metalens and a flat metallic… read more here.
Keywords: high efficiency; flat retroreflector; wide angle; angle high ... See more keywords