透過光學超穎表面 (metasurfaces) 增強二維材料中光-物質相互作用引起了許多人的關注。在這裡，本論文使用COMSOL Multiphysics®模擬軟體研究了二氧化鈦 (TiO2) 超穎表面中連續域束縛態 (Bound state in the continuum, BIC) 的特性，並改變超穎表面中的結構參數觀察quasi-BIC模態的變化。
接著本論文設計出TiO2超穎表面與單層 (monolayer) 二硫化鎢 (WS2) 的混合結構。本論文藉由調控TiO2超穎表面的不對稱參數α和TiO2奈米棒 (nanobars) 的高度來操縱quasi-BIC的共振特性，並且在近場強度與吸收光譜中都有觀察到明顯的Rabi分裂典型的反交叉模式提供了有效的策略來增強單層二為半導體中的光與物質交互作用。

The enhanced light-matter interactions in two-dimensional transition metal dichalcogenide (TMDC) monolayers using optical nanostructures have always attracted the attention in the field of optics and photonics. Here, we use numerical electromagnetics simulations to study bound state in the continuum (BIC) in titanium dioxide (TiO2) metasurfaces. We engineer BIC resonances of the optical metasurface by sculpting its structural geometries. Next, we study a hybrid resonant structure that is based on TiO2 metasurfaces and monolayer tungsten disulfide (WS2). By tuning spectral locations of the BIC resonances around the emitter resonance of WS2, clear signatures of the anti-crossing and Rabi splitting can be observed in the both far-field and near-field spectra. This hybrid strategy using dielectric high-Q resonances provides an alternative to the plasmonic counterpart for strong light-TMDC interactions.

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