材料科学
双折射
折射率
光子学
光学
石墨烯
六方氮化硼
光电子学
红外线的
可见光谱
纳米技术
物理
作者
Yoonhyuk Rah,Yeonghoon Jin,Sejeong Kim,Kyoungsik Yu
出处
期刊:Optics Letters
[The Optical Society]
日期:2019-07-25
卷期号:44 (15): 3797-3797
被引量:66
摘要
Two-dimensional materials such as hexagonal boron nitride (h-BN), graphene, and transition metal dichalcogenides have drawn great attention in various fields of photonics and electronics. Among them, h-BN has recently emerged as a promising material platform to study integrated quantum photonics due to its ultrabright quantum light emission capabilities. However, the fundamental optical properties of h-BN have not yet been investigated in the visible and near-infrared (NIR) spectrum thoroughly. In this Letter, we report the refractive indices of h-BN thin films in the visible to NIR range. To the best of our knowledge, this is the first experimental observation of h-BN birefringence. Accurate parameters of refractive indices enable more precise design of h-BN-based photonic devices in the integrated photonics platforms.
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