AI 中文总结
本研究提出用金属包覆WS2波导嵌入活性激子层,增强光子模式与激子的耦合强度,为调控杂化异质结构中激子-光子相互作用提供了可靠方法。
AI 中文摘要
二维材料中Fabry Perot(法布里-珀罗)与导波自杂化激子极化激元的形成,可实现长程激子能量转移与强激子-激子相互作用。本研究表明,通过将活性激子层嵌入金属包覆WS2波导,能显著增强光子模式与激子的耦合强度;与纯WS2薄片相比,该波导中的光子模式对Fabry Perot型及导波激子极化激元均呈现修正后的色散特性,且耦合强度有所提升。研究结果为调控杂化异质结构中激子-光子相互作用及其耦合强度提供了可靠方法。
英文摘要
The formation of Fabry Perot and guided wave self hybridized exciton polaritons in two dimensional materials results in long range exciton energy transfer and strong exciton exciton interactions. Here, we demonstrate that the coupling strength between photonic modes and excitons is significantly boosted by embedding the active excitonic layer in a metal clad WS2 waveguide. The photonic modes in this waveguide exhibit modified dispersion properties for both Fabry Perot type and guided wave exciton polaritons compared to pure WS2 flakes, and show an increased couplingr strength. Our results provide a robust approach for controlling exciton photon interactions and their coupling strength in hybrid heterostructures.