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Enhanced ultraviolet upconversion emission using nanocavities

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Abstract

We investigate the upconversion emission spectra of Tm3+ and Yb3+ codoped: β-NaYF4-NaYF4 core-shell nanoparticles embedded in plasmonic nanocavities. The results confirm the role of nanocavities in maximizing the conversion efficiency from the NIR to UV.

© 2014 Optical Society of America

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