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[Nature] [Nature] 20170309期材料类期刊

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发表于 2017-9-30 23:05:58 | 显示全部楼层 |阅读模式
Nature 期刊 20170309期共更新 3 篇材料类文献
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题目:Amplified stimulated emission in upconversion nanoparticles for super-resolution nanoscopy
作者:Peng Xi & Dayong Jin
关键词:超高分辨纳米显微镜  镧系参杂  亚稳态
摘要核心:Here we show that UCNPs doped with high concentrations of thulium ions (Tm3+), excited at a wavelength of 980 nanometres, can readily establish a population inversion on their intermediate metastable 3H4 level: the reduced inter-emitter distance at high Tm3+ doping concentration leads to intense cross-relaxation, inducing a photonavalanche-like effect that rapidly populates the metastable 3H4 level, resulting in population inversion relative to the 3H6 ground level within a single nanoparticle.
文章: Amplified stimulated emission in upconversion nanoparticles for super-resolution.pdf (4.91 MB, 下载次数: 5)
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