High optical absorption in graphene
نویسندگان
چکیده
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. OCIS codes: (230.0230) Optical devices; (260.0260) Physical optics; (310.0310) Thin films.
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