论文标题

石墨烷在红外范围内的光学特性

Optical properties of graphane in infrared range

论文作者

Preobrazhensky, E. I., Oladyshkin, I. V., Tokman, M. D.

论文摘要

开发了Terahertz和红外范围中氢化石墨烯(石墨烷)的光学效应理论,包括对底物上石墨烷的复杂电导率,反射系数的分析以及表面等离子体 - 孔子孔的分散。该计算基于伽马点附近的石墨烷结构的分析近似以及量子相干弛豫的修改模型。可以将获得的理论结果与相应的实验数据进行比较,既可以用于测定石墨烷特征(费米水平,放松率等),又可以使用该材料在新的光学元素设计中的潜在应用。

The theory of optical effects in hydrogenated graphene (graphane) in terahertz and infrared range is developed, including the analysis of complex conductivity, reflection coefficient for graphane on a substrate and dispersion of surface plasmon-polaritons. The calculations are based on quite simple analytical approximation of graphane band structure in the vicinity of Gamma-point and on the modified model of quantum coherence relaxation. Comparison of the obtained theoretical results with corresponding experimental data can be used both for the determination of graphane characteristics (Fermi level, relaxation rate etc.) and for the investigation of potential applications of this material in the design of new optical elements.

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