Two-dimensional (2D) metamaterials are considered to be of enormous relevance to the progress of all exact sciences.Since the discovery of graphene,researchers
We demonstrate a high performance GaAs/AlGaAs-based quantum-well photodetector (QWP) device with a peak response frequency of 4.3 THz.The negative differential
In order to clarify the influence of methane concentration and deposition time on self-organized nano-multilayers,three serial copper-carbon films have been pre