Optical constants of graphene layers in the visible range

Applied Physics Letters - Tập 94 Số 3 - 2009
Matteo Bruna1, Stefano Borini1
1INRIM Electromagnetic Division, , Strada delle Cacce 91, Torino I-10135, Italy

Tóm tắt

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.

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Tài liệu tham khảo

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Applied Physics Letters

Tập 94 Số 3

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