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We report the first experimental finding of nonlinear responses of photoluminescence (PL) intensity in coupling systems of plasmonic metasurface and InAs quantum dots (QDs) embedded in a GaAs substrate. We numerically designed the coupling systems and experimentally studied the PL at room temperature (RT). We found that even weak excitation induces superlinear response of the PL intensities. For comparison,...
Highly luminescent boron nitride (BN) was synthesized by pyrolysis of molecular adduct prepared by chemical mixing of boric acid and melamine with a small amount of cerium nitrate. After pyrolysis, Ce ions were substitutionally incorporated to B3N3 hexagonal layer of turbostratic BN at a very low doping level which was estimated to be less than 7 × 1018 atoms/cm3. Ordered stacking of hexagonal layers...
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