材料科学
激子
等离子体子
光子学
光电子学
极化子
表面等离子体激元
半导体
电介质
平面的
联轴节(管道)
纳米光子学
纳米技术
表面等离子体子
凝聚态物理
物理
计算机科学
计算机图形学(图像)
冶金
作者
P. A. D. Gonçalves,L. P. Bertelsen,Sanshui Xiao,N. Asger Mortensen
出处
期刊:Physical review
日期:2018-01-05
卷期号:97 (4)
被引量:81
标识
DOI:10.1103/physrevb.97.041402
摘要
The realization and control of polaritons is of paramount importance in the prospect of novel photonic devices. Here, we investigate the emergence of plasmon-exciton polaritons in hybrid structures consisting of a two-dimensional transition-metal dichalcogenide (TMDC) deposited onto a metal substrate or coating a metallic thin film. We determine the polaritonic spectrum and show that, in the former case, the addition of a top dielectric layer and, in the latter case, the thickness of the metal film can be used to tune and promote plasmon-exciton interactions well within the strong-coupling regime. Our results demonstrate that Rabi splittings exceeding 100 meV can readily be achieved in planar dielectric/TMDC/metal structures under ambient conditions. We thus believe that this Rapid Communication provides a simple and intuitive picture to tailor strong coupling in plexcitonics with potential applications for engineering compact photonic devices with tunable optical properties.
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