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Plasmon–Exciton Coupling in Complex Systems
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-07-15 , DOI: 10.1002/adom.201800275
Xiaoguang Li 1 , Li Zhou 2 , Zhonghua Hao 2 , Qu-Quan Wang 3
Affiliation  

In recent years, optical properties of the complex systems involving both metal plasmons and molecular/semiconductor excitons have attracted great attentions due to their rich and varied optical characteristics. In this type of hybrid systems, the plasmon plays a role to drastically enhance the coupling between the system and external field, while the exciton plays a role to control the detailed spectral properties, providing tempting avenues for manipulating new optical control beyond what can be achieved using either of the components. In addition to the mutual coupling between the plasmon and exciton, their different linewidths and the abilities to couple with external field provide a variety of control handles to tune the optical properties of the hybrid systems. It thus allows to precisely manipulate light on the nanometer‐scale, opening up opportunities for novel sensing, light‐emitting, and photovoltaic devices. Here, the recent progress in both theoretical and experimental developments is reviewed. The theoretical part is focused on studies of the absorption/scattering spectral line shapes of the hybrid systems, especially the transition between Fano resonance and Rabi splitting peaks. The various technical approaches to tune the plasmon–exciton coupling in complex systems are reviewed in the experimental part.

中文翻译:

复杂系统中的等离激子耦合

近年来,涉及金属等离子体激元和分子/半导体激子的复杂系统的光学性质因其丰富而多样的光学特性而备受关注。在这种类型的混合系统中,等离激元起着极大地增强系统与外部场之间耦合的作用,而激子起着控制详细光谱特性的作用,为操纵新的光学控制方法提供了诱人的途径,超出了可实现的范围。使用任何一个组件。除了等离激元和激子之间的相互耦合之外,它们不同的线宽以及与外部场耦合的能力还提供了各种控制手柄,可调节混合系统的光学特性。因此,它可以精确地控制纳米级的光,为新颖的传感,发光和光伏设备打开了机会。在这里,回顾了理论和实验发展的最新进展。理论部分的重点是研究混合系统的吸收/散射谱线形状,特别是Fano共振和Rabi分裂峰之间的跃迁。在实验部分中,对调节复杂系统中的等离激元-激子耦合的各种技术方法进行了综述。
更新日期:2018-07-15
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