Strong exciton-photon coupling and exciton hybridization in a thermally evaporated polycrystalline film of an organic small molecule
Strong exciton-photon coupling and exciton hybridization in a thermally evaporated polycrystalline film of an organic small molecule
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DOI：
10.1103/physrevlett.93.186404
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发表时间：
2004-10-29
影响因子：
8.6
通讯作者：
Forrest, SR
中科院分区：
文献类型：
--
作者：
Holmes, RJ;Forrest, SR
我们在包含热蒸发多晶有机薄膜的光学微腔中展示了强激子-光子耦合。微腔极化激元是由 3,4,7,8 萘四甲酸二酐的 0-0 激子跃迁与腔光子之间的耦合产生的。对于较厚的薄膜，0-1 转变也与腔模式耦合，因为短拉比周期克服了振动弛豫，实现了强耦合。据我们所知，这是首次报道单一材料中空腔光子与多个振动电子跃迁之间的强耦合，这是由于晶体有机材料的显着振动吸收特征而成为可能。
We demonstrate strong exciton-photon coupling in an optical microcavity containing a thermally evaporated polycrystalline organic thin film. Microcavity polaritons result from coupling between the 0-0 excitonic transition of 3,4,7,8 napthalenetetracarboxylic dianhydride and a cavity photon. For thicker films, the 0-1 transition also couples to the cavity mode, as vibronic relaxation is overcome by the short Rabi period for strong coupling. To our knowledge, this is the first report of strong coupling between a cavity photon and multiple vibronic transitions in a single material, made possible by the pronounced vibronic absorption features characteristic of crystalline organic materials.