Synergistic graphene/aluminum surface plasmon coupling for zinc oxide lasing improvement
Synergistic graphene/aluminum surface plasmon coupling for zinc oxide lasing improvement
复制标题
用于改善氧化锌激光发射的协同石墨烯/铝表面等离子体耦合
DOI：
10.1007/s12274-016-1387-0
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发表时间：
2017-02
期刊：
影响因子：
--
通讯作者：
Chunxiang
中科院分区：
文献类型：
--
作者：
Zhu;Qiuxiang;Qin;Feifei;Lu;Junfeng;Zhu;Zhu;Nan;Haiyan;Sh;iZengliang;Ni;Zhenhua;Xu;Chunxiang
Collective oscillations of free electrons generate plasmons on the surface of a material. A whispering-gallery microcavity effectively confines the light field on its surface based on the total reflection from its internal wall. When these two kinds of electromagnetic waves meet each other, the stimulated emissions from an individual ZnO microrod were enhanced more than 50-fold and the threshold was reduced after the whispering-gallery microcavity was coated with a monolayer of graphene and Al nanoparticles. The improvement of the lasing performance was attributed to the synergistic energy coupling of the graphene/Al surface plasmons with ZnO excitons. The lasing characteristics and the coupling mechanism were investigated systematically.
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