Mr. Chenyu Cui Profile

Chenyu Cui

at National Univ of Defense Technology

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Proceedings Article | 4 December 2020 Paper

Hundredfold surface plasmon enhancement of fluorescence from up-conversion micro-nano particles emissions

Chenyu Cui, Kai Han, Hao Liu, Minsun Chen, Wenda Cui, Changqing Song, Guomin Zhao

Proceedings Volume 11617, 116170D (2020) https://doi.org/10.1117/12.2584487

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This study demonstrates manipulation of luminance from CaF₂: Yb³⁺, Er³⁺ up-conversion (UC) micronano particles emissions and the fluorescence intensity improvement by using various surface plasmon resonance substrates which consist of SiO₂, gold thin film, and nano cones from bottom to the top in the view of side structure. When they are applied, the optimum enhancement of the intensity of red up-conversion luminescence (UCL) peaked at 653 nm shows up to 189-fold. The distance dependent intensities of two UC micro-nano particles manipulated by holographic optical tweezers (HOT) are also illustrated in this article. The fluorescence intensities decrease when two UC micro-nano particles become near to the each other due to the inter-system transition at the much short distance.

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