Optical constants of graphene layers in the visible range

被引：539

作者：

Bruna, M. ^{[1
]}

Borini, S. ^{[1
]}

机构：

[1] INRIM, Electromagnet Div, I-10135 Turin, Italy

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 03期

关键词：

graphite; optical conductivity; refractive index; thin films; graphene; GRAPHITE;

D O I：

10.1063/1.3073717

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We show that the optical constants of graphene in the visible range can be estimated by means of a very simple procedure involving their consistence with universal optical conductivity and experimentally measured optical spectra, within the framework of Fresnel coefficients calculation. The obtained complex refractive index allows for accurate prediction of the optical behavior of graphene in the visible range, from the two-dimensional limit (single atomically thick graphene layer) to the bulk limit (graphite). Therefore, it may result very useful for quantitative optical analysis of graphene layers and graphitic structures in general.

引用

页数：3

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