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首页> 外文期刊>Plasmonics >Lattice Plasmon Induced Large Enhancement of Excitonic Emission in Monolayer Metal Dichalcogenides
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Lattice Plasmon Induced Large Enhancement of Excitonic Emission in Monolayer Metal Dichalcogenides

机译：晶格等离子体诱导单层金属二甲基甲基化物中的兴奋发射的大量增强

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摘要

Through the integration of a strongly coupled plasmonic nanoantenna array with a monolayer MoSe2, spatial maps of the photoluminescence (PL) are acquired on- and off-resonance to exhibit the role of the lattice plasmon modes on the enhancement of the PL from the MoSe2 monolayer. The on-resonance excitation of the hybrid nanostructure at 785 nm reveals a significant PL enhancement of more than 25 (compared to the PL enhancement factor that a Fabry-Perot resonance provides), while the off-resonance excitation at 488 nm only results in an enhancement factor of five. Polarization-resolved optical reflection spectroscopy is also experimented to verify the role of the coupled nanoantenna array on the PL enhancement. Full-wave numerical simulations of the complete structure are also performed to support the observed experimental results. These findings enrich our knowledge regarding the light interaction with 2D materials mediated by plasmonic nanostructures and pave the way for the design of a new class of hybrid 2D material plasmonic devices that utilize enhanced light-matter interaction.
机译：通过用单层MOSE2集成具有单层MOSE2的强耦合的等离子体纳米纳米阵列，获取光致发光（PL）的空间图，以表现出晶格等模式从MOSE2单层的PL增强的作用。杂交纳米结构在785nm处的共振激发揭示了超过25的显着的PL增强（与Fabry-Perot谐振提供的PL增强因子相比），而488nm的偏离共振激发仅结果增强因子五。偏振分辨的光学反射光谱也是试验以验证耦合的纳米阵列阵列在PL增强上的作用。还进行全波数值模拟，以支持观察到的实验结果。这些调查结果丰富了关于与等级纳米结构介导的2D材料的光相互作用的知识，并为设计采用增强的浅品相互作用的新类混合材料等离子体等离子体装置。

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