超材料
光学
电介质
表面等离子体子
材料科学
反射系数
表面等离子体激元
等离子体子
图层(电子)
塞尔效应
极化子
反射(计算机编程)
变换光学
光电子学
联轴节(管道)
分裂环谐振器
负折射
物理
自发辐射
纳米技术
激光器
冶金
程序设计语言
计算机科学
作者
Ling Li,Zhangyu Zhou,Changjun Min,Xiaocong Yuan
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2021-01-04
卷期号:46 (2): 190-190
被引量:10
摘要
Multilayer hyperbolic metamaterials consisting of alternating metal and dielectric layers have important applications in spontaneous emission enhancement. In contrast to the conventional choice of at least dozens of layers in multilayer structures to achieve tunable Purcell effect on quantum emitters, our numerical calculations reveal that multilayers with fewer layers and thinner layers would outperform in the Purcell effect. These discoveries are attributed to the negative contributions by an increasing layer number to the imaginary part of the reflection coefficient and the stronger coupling between surface plasmon polariton modes on a thinner metal layer. This work could provide fundamental insights and a practical guide for optimizing the local density of optical states enhancement functionality of layered metamaterials.
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