High optical absorption in graphene

Details High optical absorption in graphene High optical absorption in graphene

2012-01-15

arxiv.org/abs/1201.3071v1

Physics

Optics

3 figures

Scientific paper

A simple analysis is performed for the absorption properties of graphene; sandwiched between two media. For a proper choice of media and graphene doping/gating one can approach 50-100% absorption in the GHz-THz range for the one atom thick material. This absorption is controlled by a characteristic chemical potential which depends only on carrier life-time and the indexes of refraction of the dielectric embedding.

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