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We experimentally demonstrate a dielectric metamaterial comprising silicon nanofins on a glass substrate. Left- and right-circularly polarized beams incident upon the device are deflected into different directions. Our approach avoids the efficiency issues of plasmonics.
We report on an efficient room-temperature source of single photons based on single nitrogen-vacancy centers in nanodiamonds (NDs) placing on a large-area plasmonic platform formed by crystalline gold flakes covered with a thin dielectric layer. Due to the strongly confined plasmonic fields in the thin dielectric layer, the NDs show a large enhancement in the fluorescence intensity without significant...
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