Near-perfect (>99%) dual-band absorption in the visible using ultrathin semiconducting gratings.
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DOI: 10.1364/oe.470617
Abstract: Electromagnetic perfect absorption entails impedance-matching between two adjacent media, which is often achieved through the excitation of photonic/plasmonic resonances in structures such as metamaterials. Recently, super absorption was achieved using a simple bi-layer configuration consisting… read more here.
Keywords: ultrathin semiconducting; near perfect; dual band; resonance ... See more keywords