We investigate the enhanced chirality of chiral molecular J-aggregates (TDBC) by the propagating surface plasmons (PSPs) in the metallic hole array structure filled with TDBC. The two ends of the hole in the metal film form a low quality factor Fabry–Perot (FP) cavity, and this cavity confines PSPs. The resonant wavelength of the metallic hole array is tuned by the lattice constant and the size of the hole. Both the resonant wavelength of Ag hole array and the volume ratio of TDBC in the hybridized structure influence on the enhancement of the circular dichroism (CD) spectrum. The curve of CD spectrum shows Fano-like line-shape, due to the interaction between the non-radiative field in the FP cavity and the radiative field in chiral TDBC. The maximum of the CD spectrum of the hybridized structure is 0.025 times as the one of the extinction spectrum in a certain structure, while the maximum of the CD spectrum of TDBC is 1/3000 times as the one of the extinction spectrum. The enha...

中文翻译：

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TDBC在金属孔阵列结构中增强的圆二色性

我们研究了由填充TDBC的金属孔阵列结构中的传播表面等离子体激元（PSP）增强的手性分子J聚集体（TDBC）的手性。金属膜中孔的两端形成低品质因数的法布里-珀罗（FP）腔，该腔限制了PSP。金属孔阵列的共振波长通过晶格常数和孔的尺寸来调整。Ag孔阵列的共振波长和混合结构中TDBC的体积比均会影响圆二色性（CD）光谱的增强。由于FP腔中的非辐射场与手性TDBC中的辐射场之间的相互作用，CD光谱的曲线呈Fano状线形。杂交结构的CD光谱的最大值为0。在某种结构中，它是消光光谱之一的025倍，而TDBC的CD光谱的最大值是消光光谱之一的1/3000倍。恩哈...