Strong coupling between surface plasmons and excitons in an organic semiconductor

被引:677
作者
Bellessa, J [1 ]
Bonnand, C
Plenet, JC
Mugnier, J
机构
[1] Univ Lyon 1, CNRS, UMR 5586, Lab Phys Mat Condensee & Nanostruct, F-69622 Villeurbanne, France
[2] Univ Lyon 1, CNRS, UMR 5620, Lab Physicochim Mat Luminescents, F-69622 Villeurbanne, France
关键词
D O I
10.1103/PhysRevLett.93.036404
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on the observation of a strong coupling between a surface plasmon and an exciton. Reflectometry experiments are performed on an organic semiconductor, namely, cyanide dye J aggregates, deposited on a silver film. The dispersion lines present an anticrossing that is the signature of a strong plasmon-exciton coupling. Mixed states are formed in a similar way as microcavities polaritons. The Rabi splitting characteristic of this coupling reaches 180 meV at room temperature. The emission of the low energy plasmon-exciton mixed state has been observed and is largely shifted from the uncoupled emission.
引用
收藏
页码:036404 / 1
页数:4
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